GHSA-8c6x-g4fw-8rf4
MEDIUMWhatsapp-Chat-Exporter has Cross-Site Scripting vulnerability in HTML output of chats.
Blast Radius
whatsapp-chat-exporterReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Impact
A Cross-Site Scripting (XSS) vulnerability was found in the HTML output of chats. XSS is intended to be mitigated by Jinja's escape function. However, autoescape=True was missing when setting the environment. Although the actual impact is low, considering the HTML file is being viewed offline, an adversary may still be able to inject malicious payloads into the chat through WhatsApp. All users are affected.
Patches
The vulnerability is patched in 0.9.5. All users are strongly advised to update the exporter to the latest version.
Workarounds
No workaround is available. Please update the exporter to the latest version.
References
https://github.com/KnugiHK/WhatsApp-Chat-Exporter/commit/bfdc68cd6ad53ceecf132773f9aaba50dd80fe79 https://owasp.org/www-community/attacks/xss/
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | whatsapp-chat-exporter | all versions | 0.9.5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for whatsapp-chat-exporter. 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 whatsapp-chat-exporter to 0.9.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8c6x-g4fw-8rf4 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-8c6x-g4fw-8rf4 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-8c6x-g4fw-8rf4. 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-8c6x-g4fw-8rf4 in your dependencies?
O3 detects GHSA-8c6x-g4fw-8rf4 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.