Quick answers
- Is CVE-2026-73186 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-73186 being exploited in the wild.
- How severe is CVE-2026-73186?
- High severity, with a CVSS score of 8.8, published 30 October 2026.
- Which products and versions are affected?
- ShortPixel Enable Media Replace 4.2.2 and earlier.
- Is there a fix for CVE-2026-73186?
- Yes: fixed in 4.2.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-73186 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-73186?
- Check whether you run ShortPixel Enable Media Replace 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.
How to fix
- Fixed in: 4.2.3
Technical details
A PHP object injection vulnerability exists in Enable Media Replace <= 4.2.2 that allows attackers with subscriber-level privileges to inject malicious serialized objects. By exploiting unsafe deserialization, an attacker can manipulate object instantiation to execute arbitrary server-side code. The vulnerability requires subscriber access but no additional user interaction.
Affected products
- ShortPixel Enable Media Replace 4.2.2 and earlier
Timeline
- 2026-10-30: disclosed
- 2026-10-30: advisory: Patchstack published vulnerability details
- 2026-10-30: patched: Version 4.2.3 released with fix