Quick answers
- Is CVE-2026-62088 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-62088 being exploited in the wild.
- How severe is CVE-2026-62088?
- Medium severity, with a CVSS score of 5.3, published 11 September 2026.
- Which products and versions are affected?
- 10up ElasticPress through 5.3.4.
- Is there a fix for CVE-2026-62088?
- A patch was published on 2026-09-11: Version 5.3.5 available Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-62088 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-62088?
- Check whether you run 10up ElasticPress 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
The vulnerability is classified as an insertion of sensitive information into sent data (CWE-95 or similar), where private information is unintentionally leaked through the plugin's outbound communication or API responses. The flaw affects ElasticPress versions through 5.3.4 and does not require authentication to exploit. An attacker on the network or monitoring outbound traffic could retrieve embedded sensitive data, leading to unauthorized disclosure of passwords, emails, payment information, or other confidential details. The issue is patched in version 5.3.5 and later.
Affected products
- 10up ElasticPress through 5.3.4
Timeline
- 2026-09-11: disclosed: Vulnerability published by Patchstack
- 2026-09-11: patched: Version 5.3.5 available