PyroCMS 3.9 is vulnerable to a stored Cross Site Scripting (XSS_ when a low privileged user such as an author, injects a crafted html and javascript payload in a blog post, leading to full admin account takeover or privilege escalation.
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Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-11-25. NVD baseline CVSS 9.0; sources differ by 0.0.
PyroCMS 3.9 is vulnerable to a stored Cross Site Scripting (XSS_ when a low privileged user such as an author, injects a crafted html and javascript payload in a blog post, leading to full admin account takeover or privilege escalation.
November 25, 2022
April 25, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| composer | pyrocms/pyrocms | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pyrocms/pyrocms | 3.0.0-alpha1 ... v3.9.1 (66 versions) | — | — |
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composer:pyrocms/pyrocms