CVE-2026-2951: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in gutentor Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor
CVE-2026-2951 is a stored cross-site scripting (XSS) vulnerability in the Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor WordPress plugin. It affects versions up to and including 3. 5. 5. The vulnerability arises from insufficient input sanitization and output escaping, allowing authenticated users with contributor-level access or higher to inject arbitrary scripts into pages. These scripts execute when any user accesses the compromised page. The vulnerability has a medium severity with a CVSS score of 5. 4. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
The Gutentor WordPress plugin suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Authenticated attackers with contributor or higher privileges can inject malicious scripts into pages, which execute upon page access by users. This can lead to limited confidentiality and integrity impacts as indicated by the CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N). The vulnerability affects all versions up to 3.5.5. No patch or official remediation has been documented yet.
Potential Impact
An attacker with contributor-level access or higher can inject persistent malicious scripts into pages, which execute in the context of users viewing those pages. This may lead to partial confidentiality and integrity loss, such as stealing session tokens or modifying page content. There is no direct impact on availability. The vulnerability requires user interaction (page visit) and authenticated privileges to exploit.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider monitoring for suspicious script injections. Avoid granting unnecessary privileges to reduce exposure.
CVE-2026-2951: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in gutentor Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor
Description
CVE-2026-2951 is a stored cross-site scripting (XSS) vulnerability in the Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor WordPress plugin. It affects versions up to and including 3. 5. 5. The vulnerability arises from insufficient input sanitization and output escaping, allowing authenticated users with contributor-level access or higher to inject arbitrary scripts into pages. These scripts execute when any user accesses the compromised page. The vulnerability has a medium severity with a CVSS score of 5. 4. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 5.4medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Gutentor WordPress plugin suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Authenticated attackers with contributor or higher privileges can inject malicious scripts into pages, which execute upon page access by users. This can lead to limited confidentiality and integrity impacts as indicated by the CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N). The vulnerability affects all versions up to 3.5.5. No patch or official remediation has been documented yet.
Potential Impact
An attacker with contributor-level access or higher can inject persistent malicious scripts into pages, which execute in the context of users viewing those pages. This may lead to partial confidentiality and integrity loss, such as stealing session tokens or modifying page content. There is no direct impact on availability. The vulnerability requires user interaction (page visit) and authenticated privileges to exploit.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider monitoring for suspicious script injections. Avoid granting unnecessary privileges to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-02-21T20:23:25.224Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e9891887115cfb6867f65f
Added to database: 4/23/2026, 2:51:04 AM
Last enriched: 4/30/2026, 8:14:48 AM
Last updated: 6/5/2026, 3:57:58 PM
Views: 66
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