Is CVE-2026-57371 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57371 being exploited in the wild.

How severe is CVE-2026-57371?

High severity, with a CVSS score of 8.8, published 13 July 2026.

Is there a fix for CVE-2026-57371?

A patch was published on 2026-07-13: Version 7.0.1 confirmed as patched version Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-57371 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-57371?

Check whether you run WPJAM Basic at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57371: denishua WPJAM Basic PHP object injection

CVE-2026-57371 · Severity: high · CVSS 8.8 · Published 2026-07-13

WPJAM Basic, a popular WordPress plugin used for site optimization and management, is vulnerable to a security flaw that could allow an attacker to take control of a website. By exploiting this issue, a logged-in user with basic permissions could potentially execute malicious code, access sensitive data, or disrupt site operations. This vulnerability is particularly concerning as it can be used in automated attacks against many websites simultaneously.

Technologies: WPJAM Basic. Vendors: WPJAM.

Quick answers

Is CVE-2026-57371 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57371 being exploited in the wild.
How severe is CVE-2026-57371?: High severity, with a CVSS score of 8.8, published 13 July 2026.
Which products and versions are affected?: WPJAM Basic <= 7.0.
Is there a fix for CVE-2026-57371?: A patch was published on 2026-07-13: Version 7.0.1 confirmed as patched version Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-57371 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-57371?: Check whether you run WPJAM Basic at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A Deserialization of Untrusted Data vulnerability (CWE-502) exists in the denishua WPJAM Basic plugin through version 7.0. The flaw allows for PHP Object Injection when the plugin improperly handles user-supplied input during deserialization. An attacker with at least Contributor-level privileges can exploit this to inject a PHP object, which, if a suitable POP (Property-Oriented Programming) chain is present on the server, can lead to remote code execution, SQL injection, or file system traversal. The issue is resolved in version 7.0.1.

Affected products

denishua WPJAM Basic <= 7.0

Timeline

2026-04-25: disclosed: Reported by hhhai to Patchstack
2026-07-07: advisory: Patchstack published advisory and mitigation rules
2026-07-13: advisory: NVD published CVE-2026-57371
2026-07-13: patched: Version 7.0.1 confirmed as patched version

References

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