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VulnerabilityPublished Updated

CVE-2026-1542: Super Stage WP · Deserialization of Untrusted Data

Affects Super Stage WPSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Super Stage WPAffected
  • <=1.0.1
Fixed in–

AI-suggested

To mitigate CVE-2026-1542, organizations should first check for plugin updates or patches from the vendor and apply them immediately once available. In the absence of patches, disabling or removing the Super Stage WP plugin is recommended. Implement strict input validation and sanitization to prevent unserializing untrusted data, especially from user-controllable sources like REQUEST. Employ web application firewalls (WAFs) with rules designed to detect and block malicious serialized payloads or PHP Object Injection attempts. Review and harden PHP configurations to disable dangerous functions or limit object deserialization where possible. Conduct code audits to identify and remove gadget chains that could be exploited. Monitor logs for unusual activity indicative of exploitation attempts, such as unexpected serialized data or abnormal plugin behavior. Educate development teams on secure coding practices regarding serialization and deserialization. Finally, maintain regular backups and incident response plans to quickly recover from potential compromises.

Description

The Super Stage WP WordPress plugin through 1.0.1 unserializes user input via REQUEST, which could allow unauthenticated users to perform PHP Object Injection when a suitable gadget is present on the blog.

References

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