How severe is GHSA-95m2-chm4-mq7m?

GHSA-95m2-chm4-mq7m has a CVSS score of 7.3/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-95m2-chm4-mq7m?

GHSA-95m2-chm4-mq7m affects the following packages: netcarver/textile (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-95m2-chm4-mq7m?

Update netcarver/textile to 4.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-95m2-chm4-mq7m is resolved across your whole dependency graph.

How do I detect GHSA-95m2-chm4-mq7m in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for netcarver/textile, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-95m2-chm4-mq7m if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is GHSA-95m2-chm4-mq7m actively exploited in the wild?

No public exploit code has been indexed for GHSA-95m2-chm4-mq7m yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-95m2-chm4-mq7m published, and has it been updated?

GHSA-95m2-chm4-mq7m was published on January 7, 2025 and was last updated on January 7, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘

🐘 Packagist

Not in CISA KEV

HIGH severity

PHP-Textile has persistent XSS vulnerability in image link handlingGHSA-95m2-chm4-mq7m

HIGHFix: textile/php-textile@ab18ae9

GHSA-95m2-chm4-mq7m is a high-severity (CVSS 7.3) vulnerability in netcarver/textile. A fix is available for netcarver/textile — see the affected versions and patch details below.

Published

Jan 7, 2025

Updated

Jan 7, 2025

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Jan 7, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🐘netcarver/textile

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Details

Persistent XSS vulnerability in image link handling of PHP-Textile versions 4.1.2 and older, when running the parser in restricted mode. In restricted mode it is expected that the input would be sanitized, allowing user-input (such as user comments) to be parsed and handled safely by the PHP-Textile library.

In restricted mode, the version 4.1.2 of the library does not sanitize or validate user-controllable href input in image links, but allows any link protocol or JavaScriptt links to be used. The vulnerability allows an attacker to add malicious JavaScript code to the page which is then executed when an unexpecting user clicks the link.

In non-restricted mode, the library allows mixed HTML input, and any link protocol by design. In restricted mode, text links were already handled correctly and the vulnerability only affects image links.

Resolution

This issue was fixed in PHP-Textile version 4.1.3. Version 4.1.3 disallows use of JavaScript in image links when the parser is ran in restricted mode. Restricted mode can be enabled with Parser::setRestricted() method prior to calling the parse method. For more information, see Parsing unstructed input in the project's README.

PoC

The following Textile input:

!securing.pl(Click Tu)!:javascript:document.innerHTML='<script>alert(1);</script>'+document.cookie)

Would render as the following HTML even in restricted mode:

<p><a href="javascript:document.innerHTML='<script>alert(1);</script>'+document.cookie"><img alt="Click Tu" src="securing.pl" title="Click Tu"></a>)</p>

Impact

The attacker can perform any operation in the application with user’s privileges or remotely control user’s browser with automated tools.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`netcarver/textile`	all versions	4.1.3`composer require netcarver/textile:^4.1.3`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for netcarver/textile, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update netcarver/textile to 4.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-95m2-chm4-mq7m is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

### Details Persistent XSS vulnerability in image link handling of PHP-Textile versions 4.1.2 and older, when running the parser in restricted mode. In restricted mode it is expected that the input would be sanitized, allowing user-input (such as user comments) to be parsed and handled safely by the PHP-Textile library. In restricted mode, the version 4.1.2 of the library does not sanitize or validate user-controllable href input in image links, but allows any link protocol or JavaScriptt links to be used. The vulnerability allows an attacker to add malicious JavaScript code to the page whic

O3 Security · Impact-Aware SCA

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