Security readout for executives and security teams
Plain-English summary
CVE-2026-3997 affects the WordPress Text Toggle plugin. Authenticated users with Contributor-level access or higher can store malicious script through a shortcode title field. The script runs when someone views the affected page. This can expose site users or administrators to session theft, unwanted actions, or content tampering.
Executive priority
Treat this as a moderate-priority WordPress content risk. It is not reported as actively exploited, but it can affect administrators if a lower-privileged account is abused. Prioritize sites with many contributors, external authors, or sensitive admin sessions.
Technical view
The issue is stored XSS in Text Toggle through the title attribute of [tt_part] and [tt] shortcodes. Sources state versions up to and including 1.1 are vulnerable due to missing sanitization and output escaping in avp_texttoggle_part_shortcode(), including HTML attribute and content contexts. CVSS is 6.4, requiring low privileges.
Likely exposure
Exposure is limited to WordPress sites with the Text Toggle plugin installed and users able to create or edit shortcode content. Sites allowing Contributor-level accounts, guest authors, or many internal publishers face higher risk. The source bundle contains inconsistent affected-version metadata, so verify against vendor and Wordfence records.
Exploitation context
No CISA KEV listing or cited source indicates active exploitation. Exploitation requires an authenticated account with Contributor privileges or higher and placement of affected shortcodes in content. Stored XSS executes when a victim views the injected page, potentially including privileged WordPress users.
Researcher notes
The source description identifies CWE-79 and points to avp-texttoggle.php lines where title is extracted and concatenated into HTML without escaping. The class attribute is reportedly constrained with ctype_alnum(), but title is not. Avoid assuming a patch status beyond cited vendor or Wordfence information.
Mitigation direction
- Check vendor or Wordfence guidance for a fixed Text Toggle release or official workaround.
- If no fixed version is available, disable Text Toggle where business impact permits.
- Restrict Contributor-level publishing and shortcode usage to trusted users only.
- Review and remove untrusted [tt] and [tt_part] shortcode content.
- Apply normal WordPress least-privilege and account hygiene controls.
Validation and detection
- Inventory WordPress sites for the Text Toggle plugin and installed version.
- Confirm whether versions are up to and including 1.1.
- Identify users with Contributor, Author, Editor, or Administrator permissions.
- Review posts and pages containing [tt] or [tt_part] shortcodes.
- Check security monitoring for unusual script-like content in shortcode title attributes.
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-2026-3997 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.
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:N3.12.7Primary CVE scoreVulnerability 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
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d7ac0683-120f-4e76-9d44-5ee1c789b2c8?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/text-toggle/trunk/avp-texttoggle.php#L116CVE reference
- https://plugins.trac.wordpress.org/browser/text-toggle/tags/1.1/avp-texttoggle.php#L116CVE reference
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.