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GHSA-q9jv-mm3r-j47r: PhpSpreadsheet allows bypass XSS sanitizer using the javascript protocol and special characters

# Bypass XSS sanitizer using the javascript protocol and special characters **Product**: Phpspreadsheet **Version**: version 3.6.0 **CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.3.1**: 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) **CVSS vector v.4.0**: 4.8 (AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N) **Description**: an attacker can use special characters, so that the library processes the javascript protocol with special characters and generates an HTML link **Impact**: executing arbitrary JavaScript code in the browser **Vulnerable component**: class `PhpOffice\PhpSpreadsheet\Writer\Html`, method `generateRow` **Exploitation conditions**: a user viewing a specially generated Excel file **Mitigation**: additional sanitization of special characters in a string **Researcher**: Aleksey Solovev (Positive Technologies) # Research The researcher discovered zero-day vulnerability Bypass XSS sanitizer using ...

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GHSA-hwcp-2h35-p66w: PhpSpreadsheet has a Cross-Site Scripting (XSS) vulnerability of the hyperlink base in the HTML page header

# Cross-Site Scripting (XSS) vulnerability of the hyperlink base in the HTML page header **Product**: Phpspreadsheet **Version**: version 3.6.0 **CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.3.1**: 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) **CVSS vector v.4.0**: 4.8 (AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N) **Description**: the HTML page is formed without sanitizing the hyperlink base **Impact**: executing arbitrary JavaScript code in the browser **Vulnerable component**: class `PhpOffice\PhpSpreadsheet\Writer\Html`, method `generateHTMLHeader` **Exploitation conditions**: a user viewing a specially generated Excel file **Mitigation**: additional sanitization of special characters in a string **Researcher**: Aleksey Solovev (Positive Technologies) # Research The researcher discovered zero-day vulnerability Cross-Site Scripting (XSS) vulnerability of the hyperlink base in the HTML page header in ...

GHSA-wv23-996v-q229: PhpSpreadsheet has a Cross-Site Scripting (XSS) vulnerability in custom properties

# Cross-Site Scripting (XSS) vulnerability in custom properties **Product**: Phpspreadsheet **Version**: version 3.6.0 **CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.3.1**: 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) **CVSS vector v.4.0**: 4.8 (AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N) **Description**: the HTML page is generated without clearing custom properties **Impact**: executing arbitrary JavaScript code in the browser **Vulnerable component**: class `PhpOffice\PhpSpreadsheet\Writer\Html`, method `generateMeta` **Exploitation conditions**: a user viewing a specially generated Excel file **Mitigation**: additional sanitization of special characters in a string **Researcher**: Aleksey Solovev (Positive Technologies) # Research The researcher discovered zero-day vulnerability Cross-Site Scripting (XSS) vulnerability in custom properties in Phpspreadsheet. The following code is written on the ser...

GHSA-j2xg-cjcx-4677: PhpSpreadsheet allows unauthorized Reflected XSS in Currency.php file

# Unauthorized Reflected XSS in `Currency.php` file **Product**: Phpspreadsheet **Version**: version 3.6.0 **CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.3.1**: 8.2 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N) **CVSS vector v.4.0**: 8.3 (AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L) **Description**: using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php` script, an attacker can perform XSS-type attack **Impact**: executing arbitrary JavaScript code in the browser **Vulnerable component**: the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php` file **Exploitation conditions**: an unauthorized user **Mitigation**: sanitization of the `currency` variable **Researcher**: Aleksey Solovev (Positive Technologies) # Research The researcher discovered zero-day vulnerability Unauthorized Reflected Cross-Site Scripting (XSS) (in `Currency.php` file) in Phpspread...

GHSA-c6fv-7vh8-2rhr: PhpSpreadsheet allows unauthorized Reflected XSS in the Accounting.php file

# Unauthorized Reflected XSS in the `Accounting.php` file **Product**: Phpspreadsheet **Version**: version 3.6.0 **CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.3.1**: 8.2 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N) **CVSS vector v.4.0**: 8.3 (AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L) **Description**: using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Accounting.php` script, an attacker can perform a XSS-type attack **Impact**: executing arbitrary JavaScript code in the browser **Vulnerable component**: the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Accounting.php` file **Exploitation conditions**: an unauthorized user **Mitigation**: sanitization of the currency variable **Researcher**: Aleksey Solovev (Positive Technologies) # Research The researcher discovered zero-day vulnerability Unauthorized Reflected Cross-Site Scripting (XSS) (in `Accounting.php` file) ...

GHSA-jmpx-686v-c3wx: PhpSpreadsheet allows unauthorized Reflected XSS in the constructor of the Downloader class

# Unauthorized Reflected XSS in the constructor of the `Downloader` class **Product**: Phpspreadsheet **Version**: version 3.6.0 **CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') **CVSS vector v.3.1**: 8.2 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N) **CVSS vector v.4.0**: 8.3 (AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L) **Description**: using the `/vendor/phpoffice/phpspreadsheet/samples/download.php` script, an attacker can perform a XSS-type attack **Impact**: execution of arbitrary JavaScript code in the browser **Vulnerable component**: the constructor of the `Downloader` class **Exploitation conditions**: an unauthorized user **Mitigation**: sanitization of the `name` and `type` variables **Researcher**: Aleksey Solovev (Positive Technologies) # Research The researcher discovered zero-day vulnerability Unauthorized Reflected Cross-Site Scripting (XSS) (in the constructor of the `Downloader` class) in Phpspreadsheet. ...

“Can you try a game I made?” Fake game sites lead to information stealers

Invitations to try a beta lead to a fake game website where victims will get an information stealer instead of the promised game

GHSA-j386-3444-qgwg: Trix allows Cross-site Scripting via `javascript:` url in a link

The Trix editor, versions prior to 2.1.11, is vulnerable to XSS when pasting malicious code in the link field. ### Impact An attacker could trick the user to copy&paste a malicious `javascript:` URL as a link that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed. See https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8 ### Patches Update Recommendation: Users should upgrade to Trix editor version 2.1.12 or later. ### Workarounds This is not really a workaround but something that should be considered in addition to upgrading to the patched version. If affected users can disallow browsers that don't support a Content Security Policy, then this would be an effective workaround for this and all XSS vulnerabilities. Set CSP policies such as script-src 'self' to ensure that only scripts hosted on the same origin are executed, and explicitly p...

GHSA-8fx8-pffw-w498: SiYuan has an arbitrary file deletion vulnerability

### Summary A **arbitrary file deletion vulnerability** has been identified in the latest version of Siyuan Note. The vulnerability exists in the `POST /api/history/getDocHistoryContent` endpoint.An attacker can craft a payload to exploit this vulnerability, resulting in the deletion of arbitrary files on the server. ### Details The vulnerability can be reproduced by sending a crafted request to the `/api/history/getDocHistoryContent` endpoint. Sending a request to the `/api/history/getDocHistoryContent` like: ``` curl "http://127.0.0.1:6806/api/history/getDocHistoryContent" -X POST -H "Content-Type: application/json" -d '{"historyPath":"<abs_filepath_of_a_file>"}' ``` Replace `<abs_filepath_of_a_file>` with the absolute file path of the target file you wish to delete. The `historyPath` parameter in the payload is processed by the `func getDocHistoryContent` in `api/history.go:133`. In turn, `historyPath` is passed to the `func GetDocHistoryContent` located in `model/history....

GHSA-cwrh-575j-8vr3: Karmada Tar Slips in CRDs archive extraction

### Impact _What kind of vulnerability is it? Who is impacted?_ Both in karmadactl and karmada-operator, it is possible to supply a filesystem path, or an HTTP(s) URL to retrieve the custom resource definitions(CRDs) needed by karmada. The CRDs are downloaded as a gzipped tarfile and are vulnerable to a TarSlip vulnerability. An attacker able to supply a malicious CRD file into a karmada initialization could write arbitrary files in arbitrary paths of the filesystem. ### Patches _Has the problem been patched? What versions should users upgrade to?_ From karmada version v1.12.0, when processing custom CRDs files, CRDs archive verification is utilized to enhance file system robustness. ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ When using `karmadactl init` to set up Karmada, if you need to set flag `--crd` to customize the CRD files required for karmada initialization, you can manually inspect the CRD files to check whether th...