CVE-2018-1000154 json
Zammad GmbH Zammad version 2.3.0 and earlier contains a Improper Neutralization of Script-Related HTML Tags in a Web Page (CWE-80) vulnerab…
published 2018-04-05 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1860
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
Zammad GmbH Zammad version 2.3.0 and earlier contains a Improper Neutralization of Script-Related HTML Tags in a Web Page (CWE-80) vulnerability in the subject of emails which are not html quoted in certain cases. This can result in the embedding and execution of java script code on users browser. This attack appear to be exploitable via the victim openning a ticket. This vulnerability appears to have been fixed in 2.3.1, 2.2.2 and 2.1.3.
Exploit prediction
1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/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 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
zammad.com
/news/release-2-4
vendor-advisory
-
zammad.com
/news/security-advisory-zaa-2018-01
vendor-advisory
-
github.com
/zammad/zammad/issues/1869
third-party-advisory
Sources
- CVE List CVE-2018-1000154
- NVD CVE-2018-1000154
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.