Security readout for executives and security teams
Plain-English summary
A WordPress plugin flaw lets any logged-in user, including a subscriber, influence a database query through an AJAX parameter. On affected sites, this could expose or alter site data. The source bundle does not provide CVSS scoring, but SQL injection in WordPress is business-relevant.
Executive priority
Prioritize remediation for internet-facing WordPress sites with this plugin and user registration enabled. The issue is old, public, and database-impacting, but the supplied sources do not confirm active exploitation.
Technical view
CVE-2021-24492 affects Handsome Testimonials & Reviews before 2.1.1. The hndtst_action_instance_callback AJAX path fails to sanitize, validate, or escape hndtst_previewShortcodeInstanceId before using it in SQL, causing CWE-89 SQL injection reachable by authenticated users.
Likely exposure
Exposure is limited to WordPress sites running Handsome Testimonials & Reviews versions before 2.1.1, especially sites allowing public registration or many subscriber-level accounts.
Exploitation context
The bundle reports authenticated Subscriber+ reachability but does not cite active exploitation. KEV status is false, so treat this as a known exploitable weakness, not confirmed in-the-wild exploitation.
Researcher notes
Key evidence is the unsanitized hndtst_previewShortcodeInstanceId POST parameter in an authenticated AJAX callback. The source bundle lacks CVSS details and full patch notes, so avoid assuming impact depth beyond SQL injection risk.
Mitigation direction
- Inventory WordPress sites for Handsome Testimonials & Reviews installation and version.
- Upgrade to 2.1.1 or later where vendor or WPScan guidance confirms availability.
- Disable the plugin if upgrade is unavailable or business need is low.
- Review unnecessary subscriber accounts and public registration settings.
- Monitor WordPress logs for suspicious AJAX activity tied to this plugin.
Validation and detection
- Confirm plugin version is not below 2.1.1 on each WordPress instance.
- Check whether untrusted users can authenticate as subscribers.
- Review application logs for calls to hndtst_action_instance_callback.
- Verify remediation in staging before production rollout.
- Confirm no unexpected database changes occurred around reported exposure windows.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-24492 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wpscan.com/vulnerability/42760007-0e59-4d45-8d64-86bc0b8daceaCVE reference · x_refsource_MISC
- https://codevigilant.com/disclosure/2021/wp-plugin-handsome-testimonials/CVE reference · x_refsource_MISC
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 Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.