All vulnerabilities

WordPress core

GHSA-xhp5-863h-rhfr

XML-RPC can be used to publish `customize_changeset` posts that bypass checks for `edit_css`

Severity: Medium
Published: 18 Sept 2026
Last changed: 18 Sept 2026
Added to UpHeron: 17 Oct 2026
Fixed in: 6.6.8, 6.7.8, 6.8.9, 6.9.8, 7.0.5, 7.1.1
Sources: WordPress

Affected software

Software Affected versions

WordPressWordPress core · cpe:a:wordpress:wordpress

From 7.1.0 before 7.1.1
From 7.0.0 before 7.0.5
From 6.9.0 before 6.9.8
From 6.8.0 before 6.8.9

All 25 release lines

From 4.7.0 before 4.7.36
From 4.8.0 before 4.8.31
From 4.9.0 before 4.9.32
From 5.0.0 before 5.0.28
From 5.1.0 before 5.1.25
From 5.2.0 before 5.2.27
From 5.3.0 before 5.3.24
From 5.4.0 before 5.4.22
From 5.5.0 before 5.5.21
From 5.6.0 before 5.6.20
From 5.7.0 before 5.7.18
From 5.8.0 before 5.8.16
From 5.9.0 before 5.9.17
From 6.0.0 before 6.0.15
From 6.1.0 before 6.1.13
From 6.2.0 before 6.2.12
From 6.3.0 before 6.3.11
From 6.4.0 before 6.4.11
From 6.5.0 before 6.5.11
From 6.6.0 before 6.6.8
From 6.7.0 before 6.7.8
From 6.8.0 before 6.8.9
From 6.9.0 before 6.9.8
From 7.0.0 before 7.0.5
From 7.1.0 before 7.1.1

References

GitHub Advisory Database https://github.com/advisories/GHSA-xhp5-863h-rhfr
WordPress security advisory https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-xhp5-863h-rhfr