CVE-2026-120548 (GCVE-0-2026-120548)
Vulnerability from cvelistv5 – Published: 2026-11-07 09:25 – Updated: 2026-11-08 19:05
VLAI
EPSS
VEX
Title
YML for Yandex Market <= 5.10.0 - Unauthenticated Sensitive Information Exposure through Log File via 'y4ym_check_action' Parameter via admin-post.php
Summary
The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.10.0 via the 'y4ym_check_action' parameter. This makes it possible for unauthenticated attackers to extract the merchant's plaintext Yandex Market API key written to the publicly accessible log file at wp-content/uploads/y4ym/yml-for-yandex-market.log, granting full control over the merchant's marketplace catalogue, prices, and stock. Exploitation requires that the targeted feed has a stored Yandex Market API key and that the y4ym_keeplogs option is enabled — both conditions that represent normal, documented plugin usage actively encouraged by the plugin's own support and feedback workflow.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-08 18:47 UTC
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
Wordfence
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| icopydoc | YML for Yandex Market |
Affected:
0 , ≤ 5.10.0
(semver)
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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