CVE-2025-13739: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in d3395 CryptX
The CryptX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `cryptx` shortcode in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
AI Analysis
Technical Summary
CVE-2025-13739 is a stored cross-site scripting vulnerability in the CryptX WordPress plugin (versions up to 4.0.5). The issue arises from improper neutralization of input in the 'cryptx' shortcode, where user-supplied attributes are not adequately sanitized or escaped. This allows authenticated users with contributor-level access or higher to inject arbitrary web scripts that execute in the context of any user viewing the injected page. The vulnerability is classified under CWE-79 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial impact on confidentiality and integrity with no impact on availability.
Potential Impact
An attacker with contributor-level or higher privileges can exploit this vulnerability to inject persistent malicious scripts into pages via the 'cryptx' shortcode. These scripts execute in the browsers of users who visit the compromised pages, potentially leading to unauthorized actions or data exposure limited to confidentiality and integrity impacts. There is no indication of availability impact. The vulnerability affects all users who view the injected content, but exploitation requires authenticated access with specific privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the CryptX plugin if possible. Monitor for updates from the vendor or WordPress plugin repository for an official patch or temporary workaround.
CVE-2025-13739: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in d3395 CryptX
Description
The CryptX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `cryptx` shortcode in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-13739 is a stored cross-site scripting vulnerability in the CryptX WordPress plugin (versions up to 4.0.5). The issue arises from improper neutralization of input in the 'cryptx' shortcode, where user-supplied attributes are not adequately sanitized or escaped. This allows authenticated users with contributor-level access or higher to inject arbitrary web scripts that execute in the context of any user viewing the injected page. The vulnerability is classified under CWE-79 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial impact on confidentiality and integrity with no impact on availability.
Potential Impact
An attacker with contributor-level or higher privileges can exploit this vulnerability to inject persistent malicious scripts into pages via the 'cryptx' shortcode. These scripts execute in the browsers of users who visit the compromised pages, potentially leading to unauthorized actions or data exposure limited to confidentiality and integrity impacts. There is no indication of availability impact. The vulnerability affects all users who view the injected content, but exploitation requires authenticated access with specific privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or removing the CryptX plugin if possible. Monitor for updates from the vendor or WordPress plugin repository for an official patch or temporary workaround.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-11-26T12:07:57.723Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6932a9b1f88dbe026c8e9fc9
Added to database: 12/5/2025, 9:45:21 AM
Last enriched: 4/9/2026, 9:09:01 PM
Last updated: 5/9/2026, 3:02:52 AM
Views: 203
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