CVE-2021-35210
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
Cross site scripting in the system log
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | contao/core-bundle | >=4.5.0,<4.9.16 | 4.9.16 |
| Packagist | contao/core-bundle | >=4.10.0,<4.11.5 | 4.11.5 |
| Packagist | contao/contao | >=4.5.0,<4.9.16 | 4.9.16 |
| Packagist | contao/contao | >=4.10.0,<4.11.5 | 4.11.5 |
References
- https://github.com/contao/contao/security/advisories/GHSA-h58v-c6rf-g9f7
- https://nvd.nist.gov/vuln/detail/CVE-2021-35210
- https://contao.org/en/security-advisories/cross-site-scripting-in-the-system-log-2021.html
- https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-35210.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-35210.yaml
- https://github.com/contao/contao
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.