CVE-2017-16854 — In Open Ticket Request System (OTRS) through 3
In Open Ticket Request System (OTRS) through 3.3.20, 4 through 4.0.26, 5 through 5.0.24, and 6 through 6.0.1, an attacker who is logged in as a customer can use the ticket search form to disclose internal article information of their customer tickets.
Published
2017-12-08T17:29:00.193
Last modified
2026-05-13T00:24:29.033
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
01What is this vulnerability?
In Open Ticket Request System (OTRS) through 3.3.20, 4 through 4.0.26, 5 through 5.0.24, and 6 through 6.0.1, an attacker who is logged in as a customer can use the ticket search form to disclose internal article information of their customer tickets.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2017-12-08T17:29:00.193
- Last modified: 2026-05-13T00:24:29.033
09References
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2017/12/msg00015.html
- www.debian.org — https://www.debian.org/security/2017/dsa-4066
- www.otrs.com — https://www.otrs.com/security-advisory-2017-08-security-update-otrs-framework/
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2017/12/msg00015.html
- www.debian.org — https://www.debian.org/security/2017/dsa-4066
- www.otrs.com — https://www.otrs.com/security-advisory-2017-08-security-update-otrs-framework/
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