Read the docs
TI-2020-16266 Aliases CVE-2020-26799GHSA-vpmc-2x8r-gfmc

A reflected cross-site scripting (XSS) vulnerability was discovered in index.php on…

Priority HIGH 82CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

A reflected cross-site scripting (XSS) vulnerability was discovered in index.php on Luxcal 4.5.2 which allows an unauthenticated attacker to steal other users' data.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00633 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26799
  2. 2026-10-03 Alias added: GHSA-vpmc-2x8r-gfmc
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Sources