GHSA-jxj7-g6gm-49j7
MEDIUMGHSA-jxj7-g6gm-49j7 is a medium-severity (CVSS 4.3) CWE-285 vulnerability in tarteaucitronjs. O3 Security confirms whether GHSA-jxj7-g6gm-49j7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
tarteaucitron: data-cookie attribute can be used to delete arbitrary cookies
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
tarteaucitronjsnpmDescription
Summary
tarteaucitron provides a list of cookies and buttons to delete them. If an attacker can write HTML with data attributes, they could create an element that silently deletes a cookie when clicked and trick a user to delete this cookie.
Details
tarteaucitron.cookie.purge() is called on any element with the purgeBtn class. It does not check if the element is a legitimate tarteaucitron button or if the cookie corresponds to a service handled by tarteaucitron.
PoC
<a class="purgeBtn" data-cookie="foo">Click me!</a>
If someone has a cookie with this name and clicks on the link, the cookie is silently deleted.
Impact
The impact is limited because this only works on cookies without HttpOnly=true and the attacker has to know the name of the cookie.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | tarteaucitronjs | all versions | 1.33.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tarteaucitronjs. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update tarteaucitronjs to 1.33.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jxj7-g6gm-49j7 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-jxj7-g6gm-49j7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-jxj7-g6gm-49j7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-jxj7-g6gm-49j7 in your dependencies?
O3 detects GHSA-jxj7-g6gm-49j7 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.