XSS in Otrs
CVE-2026-48209
An improper neutralization of user-controllable input in OTRS or ((OTRS)) Community Edition ticket handling allows authenticated attackers to perform reflected cross-site scripting (XSS) attacks via crafted request parameters associated with ticket actions. By injecting malicious JavaScript into manipulated request URLs, attackers can execute arbitrary script code in the context of an authenticated agent session when the crafted link is opened. This issue affects OTRS: * 7.0.x Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001
Affected products
- Otrs
- Otrs Ag — versions 7.0.x
- Otrs Ag ((Otrs)) Community Edition — versions 6.x
Weakness classification (CWE)
References
- otrs.com/release-notes/otrs-security-advisory-2026-08/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-48209?
- CVE-2026-48209 is a high-severity vulnerability in Otrs, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-06-01.
- How severe is CVE-2026-48209?
- High severity. CVSS v3 base score is 7.1 out of 10.