XSS in Techhub.p-M Decap Cms
CVE-2025-57520
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- onurcangenc.com.tr/blog/decap-cms-xss-analysis (Broken Link)
- github.com/decaporg/decap-cms (Product)
- onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-57520?
- CVE-2025-57520 is a medium-severity vulnerability in Techhub.p-M Decap Cms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-09-10.
- How severe is CVE-2025-57520?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-57520 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.