CVE-2021-21441 json
XSS in the ticket overview screens
published 2021-06-16 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8715
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
There is a XSS vulnerability in the ticket overview screens. It's possible to collect various information by having an e-mail shown in the overview screen. Attack can be performed by sending specially crafted e-mail to the system and it doesn't require any user intraction. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions.
Patch / fix
- otrs2 Debian 11 6.0.32-5
debian advisories DEBIAN-CVE-2021-21441
Exploit prediction
1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- OTRS AG ((OTRS)) Community Edition
- OTRS AG OTRS
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
otrs.com
/release-notes/otrs-security-advisory-2021-11/
release-notes, vendor-advisory
-
lists.debian.org
/debian-lts-announce/2023/08/msg00040.html
mailing-list
Sources
- CVE List CVE-2021-21441
- NVD CVE-2021-21441
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