CVE-2026-1278: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ketanmujumdar Mandatory Field
The Mandatory Field plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.6.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
AI Analysis
Technical Summary
CVE-2026-1278 is a stored cross-site scripting vulnerability in the Mandatory Field WordPress plugin (up to version 1.6.8). The flaw results from improper neutralization of input during web page generation, allowing authenticated administrators to inject malicious scripts via the plugin's admin settings. These scripts execute in the context of users visiting the injected pages, potentially leading to limited confidentiality and integrity impacts. The vulnerability affects multi-site WordPress setups or installations with unfiltered_html disabled. The CVSS 3.1 base score is 4.4 (medium), reflecting network attack vector, high attack complexity, required privileges at the administrator level, no user interaction, and partial confidentiality and integrity impact.
Potential Impact
An authenticated attacker with administrator-level permissions can inject malicious scripts into pages via the plugin's admin settings. These scripts execute when users access the affected pages, potentially compromising confidentiality and integrity of user sessions or data within the WordPress environment. The impact is limited to multi-site installations or where unfiltered_html is disabled. There is no indication of availability impact or known exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrator access to trusted users only and consider disabling or removing the Mandatory Field plugin in multi-site environments or where unfiltered_html is disabled. Monitor official sources for updates or patches addressing this vulnerability.
CVE-2026-1278: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in ketanmujumdar Mandatory Field
Description
The Mandatory Field plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.6.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-1278 is a stored cross-site scripting vulnerability in the Mandatory Field WordPress plugin (up to version 1.6.8). The flaw results from improper neutralization of input during web page generation, allowing authenticated administrators to inject malicious scripts via the plugin's admin settings. These scripts execute in the context of users visiting the injected pages, potentially leading to limited confidentiality and integrity impacts. The vulnerability affects multi-site WordPress setups or installations with unfiltered_html disabled. The CVSS 3.1 base score is 4.4 (medium), reflecting network attack vector, high attack complexity, required privileges at the administrator level, no user interaction, and partial confidentiality and integrity impact.
Potential Impact
An authenticated attacker with administrator-level permissions can inject malicious scripts into pages via the plugin's admin settings. These scripts execute when users access the affected pages, potentially compromising confidentiality and integrity of user sessions or data within the WordPress environment. The impact is limited to multi-site installations or where unfiltered_html is disabled. There is no indication of availability impact or known exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrator access to trusted users only and consider disabling or removing the Mandatory Field plugin in multi-site environments or where unfiltered_html is disabled. Monitor official sources for updates or patches addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-20T22:08:30.988Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69be1806f4197a8e3b783bb2
Added to database: 3/21/2026, 4:01:10 AM
Last enriched: 4/9/2026, 11:15:45 AM
Last updated: 4/30/2026, 11:53:50 AM
Views: 31
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