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PatchSiren cyber security CVE debrief

CVE-2025-15489 Passster CVE debrief

The Passster WordPress plugin before 4.2.24 does not handle input properly in an AJAX action, allowing unauthenticated users to retrieve the value of password protected content. This vulnerability affects WordPress administrators and security teams using Passster plugin versions before 4.2.24, who should assess exposure and prioritize upgrading to version 4.2.24 or later. The vulnerability class is related to improper input handling in AJAX actions, which could lead to potential unauthorized access to password protected content. The source confidence is based on the CVE record and NVD entry. Defenders should review the context and verify password protected content access controls.

Vendor
Passster
Product
Passster WordPress plugin (pre‑4.2.24)
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-02
Original CVE updated
2026-09-03
Advisory published
2026-09-02
Advisory updated
2026-09-03

Who should care

WordPress administrators and security teams using Passster plugin versions before 4.2.24 should assess exposure and prioritize upgrading to version 4.2.24 or later.

Why it matters

CVE-2025-15489 allows unauthenticated users to retrieve password protected content values in Passster WordPress plugin versions before 4.2.24, requiring assessment and remediation by WordPress administrators and security teams.

  • Potential unauthorized access to password protected content
  • Need to verify password protected content access controls
  • Potential data exposure through unauthenticated AJAX actions
  • Requires assessment of WordPress installations using Passster plugin versions before 4.2.24

Technical summary

The Passster WordPress plugin before 4.2.24 does not handle input properly in an AJAX action, allowing unauthenticated users to retrieve the value of password protected content. This vulnerability affects WordPress installations using Passster plugin versions before 4.2.24. The technical impact is that unauthenticated users can access password protected content values. The source-grounded technical framing is based on the CVE record and NVD entry, which provide details on the vulnerability. Defenders should assess exposure and prioritize upgrading to version 4.2.

Defensive priority

Assess exposure of WordPress installations using Passster plugin versions before 4.2.24 and prioritize upgrading to version 4.2.24 or later.

Recommended defensive actions

  • Assess exposure of WordPress installations using Passster plugin versions before 4.2.24
  • Prioritize upgrading to version 4.2.24 or later
  • Verify password protected content access controls

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Passster WordPress plugin before 4.2.24. The vulnerability allows unauthenticated users to retrieve password protected content values. The evidence is limited to the information provided in the CVE record and NVD entry. Defenders should verify password protected content access controls and assess exposure of WordPress installations using Passster plugin versions before 4.2.24. The source grounding is based on official

Sources and references

Verified primary and authoritative sources

  • CVE-2025-15489 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-15489

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-15489 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-15489

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.