The Page Builder: KingComposer plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 2.9.3. This is due to a security nonce being leaked in the '/wp-admin/index.php' page. This makes it possible for authenticated attackers to change arbitrary WordPress options, delete arbitrary files/folders, and inject arbitrary content.
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 5.2 → 6.8 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 5.2 → 5.2 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 5.2 |
Affected Software
| Vendor | Product | Version |
|---|
| king-theme | page_builder_kingcomposer | ≤ 2.9.3 |
| kingthemes | Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme | ≤ 2.9.3 |
Published: 2023-06-07
