CVE-2021-28459 json
Azure DevOps Server Spoofing Vulnerability
published 2021-04-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15137
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Azure DevOps Server Spoofing Vulnerability
Patch / fix
Exploit prediction
2.32% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- packetstormsecurity.com http://packetstormsecurity.com/files/162190/Microsoft-Azure-DevOps-Server-2020.0.1-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Microsoft Azure DevOps Server 2020.0.1
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2021-28459
patch, vendor-advisory
-
packetstormsecurity.com
/files/162190/Microsoft-Azure-DevOps-Server-2020.0.1-Cross-Site-Scripting.html
exploit, third-party-advisory, vdb-entry
-
seclists.org
/fulldisclosure/2021/Apr/25
mailing-list, third-party-advisory
Sources
- CVE List CVE-2021-28459
- NVD CVE-2021-28459
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.