CVE-2021-25273 json
Stored XSS can execute as administrator in quarantined email detail view in Sophos UTM before version 9.706.
published 2021-07-29 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12184
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
Stored XSS can execute as administrator in quarantined email detail view in Sophos UTM before version 9.706.
Patch / fix
- sophos unified_threat_management 9.706
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seclists.org http://seclists.org/fulldisclosure/2021/Dec/3 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- Sophos Sophos UTM
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
seclists.org
/fulldisclosure/2021/Dec/3
mailing-list, exploit, third-party-advisory
-
community.sophos.com
/utm-firewall/b/blog/posts/utm-up2date-9-706-released
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-25273
- NVD CVE-2021-25273
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.