What’s Vulnerable › Vulnerabilities

CVE-2019-15321

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-22 · updated 2026-06-17
• Weakness: CWE-502

Description

The option-tree plugin before 2.7.3 for WordPress has Object Injection because serialized classes are mishandled.

Affected products

• Optiontree Project Optiontree: before 2.7.3 — fixed in 2.7.3

How to fix

Upgrade to a fixed version: Optiontree Project Optiontree 2.7.3. Check the vendor advisory for mitigations.

References

• https://wordpress.org/plugins/option-tree/#developers
• https://wpvulndb.com/vulnerabilities/9600
• https://wordpress.org/plugins/option-tree/#developers
• https://wpvulndb.com/vulnerabilities/9600

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