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TI-2026-42479 Aliases CVE-2026-59516GHSA-6hg9-36gc-wphg

WordPress ICS Calendar plugin <= 12.1.1 - Cross Site Scripting (XSS) vulnerability

Priority LOW 31CWE-79Published · Updated

Key facts

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

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

Summary

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Room 34 Creative Services, LLC ICS Calendar ics-calendar allows Reflected XSS.This issue affects ICS Calendar: from n/a through <= 12.1.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00251 16th 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
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Room 34 Creative Services, LLCICS Calendarup to 12.1.1—No fix listedCNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59516
  2. 2026-10-03 Alias added: GHSA-6hg9-36gc-wphg

References

Other 1

  • TI-2023-25267 WordPress ICS Calendar plugin <= 10.12.0.3 - SSRF and Arbitrary File Read vulnerability CVSS 3.1HIGH 8.2
  • TI-2022-01433 Enable SVG < 1.4.0 - Author+ Stored Cross Site Scripting via SVG CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences