Public vulnerability disclosure

CVE-2026-121492

Fiber Admin < 4.0.1 - Unauthenticated Arbitrary Post and Term Order Modification via fiad_cpo_update and fiad_cpo_tax_update

publishedCWE-862

The Fiber Admin WordPress plugin before 4.0.1 does not have authorisation checks in some of its AJAX actions, allowing unauthenticated users to change the order of arbitrary posts, including drafts, private posts and navigation menu items, as well as the order of taxonomy terms when term ordering is enabled.

Technical severityUnscoredNo score in collected sources
Published2026-11-07Source updated 2026-11-07
Collected2026-11-071 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Fiber Admin
Unknown
≥ 0; < 4.0.1 (affected, semver)
Other versions: unaffected
CNA: WPScan

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

No CVSS assessment reported. An unscored record is not a low-severity determination.

Exploit evidence

References

For agents and automation

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