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CVE-2023-31434

Medium (5.4)—PoC
Routine follow-upSeverity Medium 5.4. A public proof of concept exists, but no active exploitation is known.
Severity5.4Medium · CVSS 3.1
Exploitation probability0.47 %higher than 41% of CVEs · score from Nov 8, 2026
Active exploitationNonot in the CISA catalog · checked Nov 8, 03:00 PM
Public exploitAvailableProof of concept on GitHub (unverified)

The parameters nutzer_titel, nutzer_vn, and nutzer_nn in the user profile, and langID and ONLINEID in direct links, in evasys before 8.2 Build 2286 and 9.x before 9.0 Build 2401 do not validate input, which allows authenticated attackers to inject HTML Code and XSS payloads in multiple locations.

Timeline

Built from our own data: NVD, CISA KEV, FIRST EPSS, public exploits, specialised media and Orbitaley coverage.

  1. CVE record published in NVD
  2. Record last modified in NVD
  3. First public exploit

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (1)

Evasys — Evasys

NVD record

NVD status
Modified
Published
May 2, 2023
Last modified
Jun 17, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79

References

Raw JSON (NVD)

Show
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