PyroCMS 3.9 is vulnerable to a stored Cross Site Scripting (XSS_ when a low privileged…
Priority MEDIUM 42CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00769 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | pyrocms/pyrocms (Packagist) | up to 3.9.1 | — | No fix listed | GHSA-cm7f-hf2g-ghrp |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- pyrocms/pyrocms (Packagist) Vendor— Affected up to 3.9.1 Fixed in — No fix listed GHSA-cm7f-hf2g-ghrp
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-37721
- 2026-10-03 Alias added: GHSA-cm7f-hf2g-ghrp
References
More Pyrocms vulnerabilities
- TI-2023-13964 PyroCMS 3.9 contains a remote code execution (RCE) vulnerability that can be exploited… CVSS 3.1CRITICAL 9.8
- TI-2024-38394 PyroCMS v3.0.1 Stored Cross-Site Scripting via Admin Redirects CVSS 4.0MEDIUM 5.3
- TI-2020-15498 PyroCMS 3.7 is vulnerable to cross-site request forgery (CSRF) via the… CVSS 3.1HIGH 7.1
- TI-2022-15847 PyroCMS v3.9 was discovered to contain multiple cross-site scripting (XSS) vulnerabilities. CVSS 3.1MEDIUM 6.1
- TI-2020-15497 PyroCMS 3.7 is vulnerable to cross-site request forgery (CSRF) via the admin/pages/delete/ URI: pages will be deleted. CVSS 3.1MEDIUM 4.3
Sources
- CVE-2022-37721 · CVE Program
- CVE-2022-37721 · NVD
- FIRST EPSS
- GHSA-cm7f-hf2g-ghrp · GitHub Advisory Database · CC BY 4.0
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