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Mother May I CVE-2026-11913

| EUVDEUVD-2026-43093 CRITICAL
Cross-site Scripting (XSS) (CWE-79)
2026-07-10 drupal GHSA-44mv-pf85-f9px
9.8
CVSS 3.1 · Vendor: drupal
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Severity by source

Vendor (drupal) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
5.4 MEDIUM

Typical stored XSS: network vector, low complexity, UI:R because a victim must view the payload, S:C into the browser, low C/I and no A; PR:L assumes some access to submit input.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (drupal).

CVSS VectorVendor: drupal

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Jul 13, 2026 - 19:32 vuln.today
CVSS changed
Jul 13, 2026 - 19:22 NVD
9.8 (CRITICAL)
CVE Published
Jul 10, 2026 - 22:00 cve.org
CRITICAL 9.8
CVE Published
Jul 10, 2026 - 22:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

vulnerability in Drupal Mother May I allows . This issue affects Mother May I versions: *.*.

AnalysisAI

Stored/reflected cross-site scripting (CWE-79) affects the Drupal contributed module 'Mother May I' across all released versions (*.*), letting attackers inject script that executes in the browser context of other Drupal users. Because the module is a Drupal add-on rather than core, exposure is limited to sites that have installed it, and no public exploit has been identified. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify Drupal site running Mother May I
Delivery
Inject script into module-rendered field
Exploit
Victim/admin views affected page
Execution
Payload executes in their session
Impact
Hijack session or act as user

Vulnerability AssessmentAI

Exploitation Exploitation requires that the Drupal site has the 'Mother May I' contrib module installed and enabled and that an attacker can reach an input field the module renders back into a page; the effective trigger is a victim (often an admin) viewing the page containing the injected payload, so despite the published UI:N metric, XSS of this class realistically depends on user interaction with the poisoned content. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals conflict sharply and should be reconciled before prioritization. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker submits a crafted value containing HTML/JavaScript into a field processed by the Mother May I module; when a Drupal user or administrator later views the page that renders that value, the script executes in their authenticated session. Given the network attack vector and low complexity, the attacker could use this to steal session cookies, perform actions as the victim, or attempt to escalate toward administrative control. …
Remediation Patch available per vendor advisory - consult the Drupal Security Team advisory at https://www.drupal.org/sa-contrib-2026-045 for the fixed release and upgrade to the patched version of the Mother May I module (an exact fixed version number is not present in the provided data, so confirm it directly from the advisory before deploying). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Audit all Drupal installations to identify systems where the 'Mother May I' module is active and document affected environments. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-11913 vulnerability details – vuln.today

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