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PatchSiren cyber security CVE debrief

CVE-2026-40732 rainafarai CVE debrief

CVE-2026-40732 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability in the Notification for Telegram plugin versions <= 3.5. The vulnerability has a CVSS score of 7.1 and is considered high severity. Defenders should assess exposure, particularly those managing WordPress installations with the affected plugin.

Vendor
rainafarai
Product
Notification for Telegram
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-10-25
Advisory published
2026-06-15
Advisory updated
2026-10-25

Who should care

Defenders managing WordPress installations with the Notification for Telegram plugin should assess exposure and prioritize remediation or compensating controls.

Why it matters

CVE-2026-40732 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability in the Notification for Telegram plugin versions <= 3.5. Defenders managing WordPress installations with the affected plugin should assess exposure and prioritize remediation or compensating controls.

  • Defenders need to verify if their versions are affected and prioritize remediation or compensating controls
  • XSS attacks could lead to unauthorized actions or data theft
  • Further verification is required to determine the full scope of affected versions and potential impact

Technical summary

The vulnerability is an unauthenticated Cross Site Scripting (XSS) in the Notification for Telegram plugin versions <= 3.5. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Defensive priority

Defenders managing WordPress installations with the Notification for Telegram plugin should verify if their versions are affected and prioritize remediation or compensating controls.

Recommended defensive actions

  • Verify if the Notification for Telegram plugin version is <= 3.5 and update to a patched version if available
  • Implement compensating controls, such as web application firewalls or intrusion detection systems, to detect and prevent XSS attacks
  • Monitor for suspicious activity and exception tracking

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the full scope of affected versions and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40732 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40732

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-40732 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40732

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.