TI-2026-01339 Aliases CVE-2026-1654 GHSA-rm46-f8vq-9224

Peter's Date Countdown <= 2.0.0 - Reflected Cross-Site Scripting via $_SERVER['PHP_SELF']

LOW 27CWE-79Published 2026-02-05 · Updated 2026-04-08

Key facts

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

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

Summary

The Peter's Date Countdown plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` parameter in all versions up to, and including, 2.0.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00333 26th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
pkthree	Peter’s Date Countdown	up to 2.0.0	—	No fix listed	CNA

Peter’s Date Countdown Vendorpkthree Affected up to 2.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-1654
2026-10-03 Alias added: GHSA-rm46-f8vq-9224

References

Other 3

TI-2024-11648 Peter’s Custom Anti-Spam <= 3.2.3 - Cross-Site Request Forgery via cas_register_post Function CVSS 3.1MEDIUM 5.4

Sources

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