Passster – Password Protect Pages and Content <= 4.2.24 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Published Jan 28, 2026
6.4
MEDIUMCVSS 3.1
EPSS 0.28%
Description
The Passster – Password Protect Pages and Content plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'content_protector' shortcode in all versions up to, and including, 4.2.24. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 4.2.21.
Affected products
-
- Version -StatusaffectedConstraints<=4.2.24
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Wpchill | Passster – Password Protect Pages and Content | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jan 28, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Jan–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.28% (0.00280) | 18.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.25% (0.00248) | 15.85th | v5 (v2026.06.15) |
| Jan 29, 2026 | 0.03% (0.00030) | 8.18th | v4 (v2025.03.14) |
References (4)
- https://plugins.trac.wordpress.org/browser/content-protector/tags/4.2.20/inc/class-ps-public.php#L136
- https://plugins.trac.wordpress.org/changeset/3422595/
- https://plugins.trac.wordpress.org/changeset/3439532/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4ea939f5-8b56-44be-bd20-b69e9ded5970?source=cve
Change history (0)
No recorded changes yet.