CVE-2026-15233

MEDIUMCVSS 4.8/10EPSS 0.15%

Last modified

CVE-2026-15233 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The Nested Pages WordPress plugin before 3.2.15 does not properly escape post titles before outputting them into HTML attributes on an administrative listing screen, allowing users with the Editor role (or Contributor/Author when the Nested Pages WordPress plugin before 3.2.15 is enabled for the post type) to inject arbitrary JavaScript that executes in the session of any higher-privileged user who views that screen.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.

Description

The Nested Pages WordPress plugin before 3.2.15 does not properly escape post titles before outputting them into HTML attributes on an administrative listing screen, allowing users with the Editor role (or Contributor/Author when the Nested Pages WordPress plugin before 3.2.15 is enabled for the post type) to inject arbitrary JavaScript that executes in the session of any higher-privileged user who views that screen.

Metrics

CVSS 3.1
4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
0.15%

4.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
UnknownNested Pages< 3.2.15

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-15233?
The Nested Pages WordPress plugin before 3.2.15 does not properly escape post titles before outputting them into HTML attributes on an administrative listing screen, allowing users with the Editor role (or Contributor/Author when the Nested Pages WordPress plugin before 3.2.15 is enabled for the post type) to inject arbitrary JavaScript that executes in the session of any higher-privileged user who views that screen.
How severe is CVE-2026-15233?
CVE-2026-15233 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.
How do I fix CVE-2026-15233?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST