Security readout for executives and security teams
Plain-English summary
A WordPress plugin, Advanced AJAX Product Filters, exposed sites to reflected cross-site scripting before version 1.5.4.7. An attacker could potentially cause script to run in a victim’s browser if the victim interacts with a crafted request. This is not a server takeover issue by itself, but it can affect user trust and session safety.
Executive priority
Treat this as a moderate-priority web security issue. Patch or remove affected plugin versions during the next maintenance window, sooner for public ecommerce sites or admin-heavy WordPress environments.
Technical view
The plugin failed to sanitize the POST parameter `term_id` before reflecting it into a page, creating CWE-79 reflected XSS. CVSS 3.1 is 6.1 with network access, low complexity, no privileges required, required user interaction, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is likely limited to WordPress sites using Advanced AJAX Product Filters versions earlier than 1.5.4.7. The source bundle does not identify a vendor name, CPEs, or broader affected products.
Exploitation context
The CVE is not listed as KEV, and the provided sources do not state active exploitation. WPScan is tagged with exploit availability, but exploitation still requires user interaction and should be treated as plausible rather than confirmed active abuse.
Researcher notes
Evidence supports unauthenticated reflected XSS in the `term_id` POST parameter. The source bundle names the vulnerable version range but gives limited product metadata. Do not infer active exploitation, affected forks, or vendor-specific mitigations beyond the cited sources.
Mitigation direction
- Inventory WordPress sites for Advanced AJAX Product Filters installations.
- Update affected plugin installations to version 1.5.4.7 or later where available.
- If update status is unclear, check vendor and WPScan guidance before deciding exposure.
- Disable or remove the plugin if a fixed version cannot be confirmed.
- Monitor WAF and application logs for suspicious `term_id` activity.
Validation and detection
- Confirm the plugin name and version on each WordPress site.
- Verify affected sites are no longer running versions earlier than 1.5.4.7.
- Review application behavior to ensure `term_id` output is sanitized or escaped.
- Check security logs for reflected XSS indicators involving the plugin.
- Document any exception where the plugin remains enabled without a confirmed fix.
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-2021-24432 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://wpscan.com/vulnerability/b92ec5f7-d6a8-476f-a01e-21001a558914/CVE reference · exploit, vdb-entry
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.