GHSA-m755-gxxg-r5qh
LOWZope management interface vulnerable to stored cross site scripting via the title property
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
zope🐍zopeReal-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
The title property, available on most Zope objects, can be used to store script code that is executed while viewing the affected object in the Zope Management Interface (ZMI) because the title property is displayed unquoted in the breadcrumbs element. All versions of Zope 4 and Zope 5 are affected.
Patches
Patches will be released with Zope versions 4.8.11 and 5.8.6.
Workarounds
Make sure only Manager users can edit and view Zope objects in the Zope Management Interface. This is the default.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | zope | ≥ 4.0.0&&< 4.8.11 | 4.8.11 |
| 🐍PyPI | zope | ≥ 5.0.0&&< 5.8.6 | 5.8.6 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zope. 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 zope to 4.8.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-m755-gxxg-r5qh 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-m755-gxxg-r5qh 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-m755-gxxg-r5qh. 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-m755-gxxg-r5qh in your dependencies?
O3 detects GHSA-m755-gxxg-r5qh across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.