CVE-2025-6050 json
Stored Cross-Site Scripting (XSS) in Mezzanine CMS Admin Interface
published 2025-06-17 16 mo ago modified 2026-07-20 3 mo ago also GHSA-7pr5-w74r-jjj7 , PYSEC-2025-236 , EUVD-2025-18488
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
Mezzanine CMS, in versions prior to 6.1.1, contains a Stored Cross-Site Scripting (XSS) vulnerability in the admin interface. The vulnerability exists in the "displayable_links_js" function, which fails to properly sanitize blog post titles before including them in JSON responses served via "/admin/displayable_links.js". An authenticated admin user can create a blog post with a malicious JavaScript payload in the title field, then trick another admin user into clicking a direct link to the "/admin/displayable_links.js" endpoint, causing the malicious script to execute in their browser.
Patch / fix
- pypi mezzanine 6.1.1
- jupo mezzanine 6.1.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 15 mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- advisory.checkmarx.net https://advisory.checkmarx.net/advisory/CVE-2025-6050/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 4.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N |
| CNA | 4.0 | 4.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mezzanine | <6.1.1 |
6.1.1 |
Affected products
- jupo mezzanine
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/stephenmcd/mezzanine/commit/898630d8df48cf3ddb8b9942f59168b93216e3f8
web, patch
-
https
//github.com/stephenmcd/mezzanine/commit/898630d8df48cf3ddb8b9942f59168b93216e3f8
web
-
advisory.checkmarx.net
/advisory/CVE-2025-6050/
exploit, third-party-advisory, evidence
-
github.com
/stephenmcd/mezzanine/discussions/2080
web, issue-tracking, report
-
nvd.nist.gov
/vuln/detail/CVE-2025-6050
advisory
-
advisory.checkmarx.net
/advisory/CVE-2025-6050
web
-
github.com
/advisories/GHSA-7pr5-w74r-jjj7
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/mezzanine/PYSEC-2025-236.yaml
web
-
github.com
/stephenmcd/mezzanine
package
Sources
- CVE List CVE-2025-6050
- GitHub Advisory GHSA-7pr5-w74r-jjj7
- NVD CVE-2025-6050
- OSV PYSEC-2025-236
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.