The WordPress Popular Posts WordPress plugin is vulnerable to arbitrary file uploads due to insufficient input file type validation found in the ~/src/Image.php file which makes it possible for attackers with contributor level access and above to upload malicious files that can be used to obtain remote code execution, in versions up to and including 5.3.2.
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 MaturityAttacked
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 | metasploit | E: P→A | 6.8 → 7.7 |
| 2026-07-21 | exploitdb | E: U→P | 5.2 → 6.8 |
| 2026-07-21 | cve.org | initial, patch: Official Patch | 5.2 |
Affected Software
| Vendor | Product | Version |
|---|
| WordPress Popular Posts | WordPress Popular Posts | ≤ 5.3.2 |
| wordpress_popular_posts_project | wordpress_popular_posts | ≤ 5.3.2 |
Published: 2021-11-17
