Risk Letters

Exploited vulnerability

CVE-2026-86444

TLP:CLEAR

thimpress learnpress Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The LearnPress WordPress plugin before 4.4.7 does not escape a user supplied value before using it in an HTML attribute on a public page, allowing unauthenticated attackers to execute arbitrary JavaScript in the browser of anyone who opens a crafted link, including a logged in administrator. Only sites running a classic, non-block are affected.

Facts

  • Vendor: thimpress
  • Product: learnpress
  • EPSS (probability of exploitation within 30 days): 0.3 %
  • First known exploitation: 13 October 2026
  • First seen by Risk Letters: 13 October 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD