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Fencer Vulns
medium 6.1

CVE-2025-52204 json

A Cross-Site Scripting (XSS) vulnerability exists in Znuny::ITSM 6.5.x in the customer.pl endpoint via the OTRSCustomerInterface parameter

published 2026-03-23 7 mo ago modified 2026-07-05 4 mo ago also EUVD-2025-208946

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

A Cross-Site Scripting (XSS) vulnerability exists in Znuny::ITSM 6.5.x in the customer.pl endpoint via the OTRSCustomerInterface parameter

Patch / fix

  • znuny Debian 14 6.5.19-1

debian advisories DEBIAN-CVE-2025-52204

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/j0qq3r/CVE-2025-52204 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

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.