CVE-2026-87112 (GCVE-0-2026-87112)
Vulnerability from cvelistv5 – Published: 2026-11-07 06:39 – Updated: 2026-11-08 19:05
VLAI
EPSS
VEX
Title
QA Assistants <= 5.3.0 - Unauthenticated PHP Object Injection to Remote Code Execution via 'raw_name' and 'dlevent_ver' Parameters
Summary
The QA Assistants – Driven by data plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.3.0 via the 'dlevent_ver' parameter. This is due to unrestricted PHP deserialization via wrap_unserialize_static() calling unserialize() without an allowed_classes restriction, combined with serialize_escape() failing to sanitize path traversal sequences in the raw_name parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. The Guzzle FileCookieJar gadget present in the plugin's bundled Composer dependencies can be leveraged to perform an Arbitrary File Write, writing attacker-controlled content to an attacker-chosen filename, which can result in Remote Code Execution. Exploitation requires triggering the qahm_cron_data_manage scheduled event via wp-cron.php to invoke the deserialization sink against a planted queue file, but this endpoint requires no authentication and fires automatically on a two-minute schedule.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-08 18:48 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Wordfence
CNA
References
9 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| quarka | QA Assistants – Driven by data |
Affected:
0 , ≤ 5.3.0
(semver)
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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