A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- 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
A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3. Input fields such as body, tags, title, and description are not properly sanitized before being rendered in the content preview pane. This enables an attacker to inject arbitrary JavaScript which executes whenever a user views the preview panel. The vulnerability affects multiple input vectors and does not require user interaction beyond viewing the affected content.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
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 |
| — | decap-cms (npm) | up to 3.8.3 | — | No fix listed | GHSA-xp8g-32qh-mv28 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- decap-cms (npm) Vendor— Affected up to 3.8.3 Fixed in — No fix listed GHSA-xp8g-32qh-mv28
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:techhub.p-m:decap_cms:*:*:*:*:*:*:*:* | up to 3.8.3 | Vulnerable | Techhub.p-m |
- cpe:2.3:a:techhub.p-m:decap_cms:*:*:*:*:*:*:*:* Versions up to 3.8.3 Vulnerable ·Techhub.p-m
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-57520
- 2026-10-03 Alias added: GHSA-xp8g-32qh-mv28
References
Sources
- CVE-2025-57520 · CVE Program
- CVE-2025-57520 · NVD
- FIRST EPSS
- GHSA-xp8g-32qh-mv28 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences