Security readout for executives and security teams
Plain-English summary
CVE-2024-11826 is a stored cross-site scripting issue in the Quill Forms WordPress plugin through version 3.10.0. A Contributor-level or higher user could save malicious script through the quillforms-popup shortcode, causing script execution when someone views the affected page.
Executive priority
Treat as a moderate priority. It is not reported as actively exploited, but WordPress sites with many content contributors should remediate promptly because stored XSS can affect administrators or visitors who view compromised pages.
Technical view
The issue is CWE-79 caused by insufficient sanitization and output escaping of user-supplied shortcode attributes in quillforms-popup. It affects authenticated Contributor+ attackers and has CVSS 3.1 score 6.4, with limited confidentiality and integrity impact and no availability impact stated.
Likely exposure
Exposure is most likely on WordPress sites running Quill Forms version 3.10.0 or earlier where Contributor-level users can create or edit content containing plugin shortcodes.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires authenticated Contributor-level access or higher, but successful abuse can affect later visitors to an injected page.
Researcher notes
Evidence supports an authenticated stored XSS in shortcode attribute handling. The WordPress changeset reference indicates code-level remediation work, but the bundle does not provide a named fixed release. Avoid assuming unauthenticated impact or active exploitation.
Mitigation direction
- Update Quill Forms beyond affected versions if a vendor release is available.
- Review vendor and WordPress.org guidance tied to changeset 3214019.
- Restrict Contributor-level access to trusted users only.
- Review pages and posts using the quillforms-popup shortcode.
- Remove suspicious shortcode attributes from affected content.
Validation and detection
- Inventory WordPress sites using the Quill Forms plugin.
- Confirm installed plugin versions are newer than 3.10.0.
- Identify users with Contributor-level or higher permissions.
- Search content for quillforms-popup shortcode usage.
- Review relevant pages for unexpected script execution indicators.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-11826 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7WordfenceVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineWordfence
Disclosed
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d59a4d69-cf51-44c1-90bf-19be04774c27?source=cveCVE reference, Wordfence
- https://plugins.trac.wordpress.org/changeset/3214019/quillforms/trunk/includes/class-shortcode.phpCVE reference, Wordfence
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.