Security readout for executives and security teams
Plain-English summary
CVE-2021-24488 is a reflected cross-site scripting issue in the Post Grid WordPress plugin before 2.1.8. A malicious link could cause script to run in a user’s browser if they open an affected plugin page. Public sources do not show active exploitation or a CVSS score.
Executive priority
Treat as a routine but real WordPress plugin exposure. Prioritize internet-facing business sites and administrator-heavy environments, but do not escalate as an active exploitation emergency based on the provided evidence.
Technical view
The CVE describes improper sanitization of the slider import search feature and the tab parameter before output in Post Grid settings pages. This maps to CWE-79 reflected XSS. The sources identify versions before 2.1.8 as affected, but do not provide exploit status, CVSS, or detailed reachability conditions.
Likely exposure
WordPress sites running the Post Grid plugin before 2.1.8 are the likely exposure. Risk depends on whether vulnerable settings pages are reachable by targeted users. The provided sources do not confirm unauthenticated exploitability.
Exploitation context
The CVE is not listed as KEV in the provided bundle. Available sources describe reflected XSS, which usually requires a victim to load a crafted request. No cited source here confirms active exploitation.
Researcher notes
Evidence is limited to the CVE description and WPScan reference. The affected condition is Post Grid before 2.1.8. The bundle does not include payload details, CVSS, authentication requirements, or proof of exploitation.
Mitigation direction
- Inventory WordPress sites for the Post Grid plugin and version.
- Update Post Grid to 2.1.8 or later where available.
- Check WPScan and vendor guidance for current remediation details.
- Restrict access to WordPress administration where operationally feasible.
- Monitor for suspicious links targeting plugin settings pages.
Validation and detection
- Confirm whether Post Grid is installed on each WordPress site.
- Verify installed versions are not older than 2.1.8.
- Review access controls for plugin settings pages.
- Check web and WordPress logs for unusual settings-page requests.
- Document remediation status for each affected site.
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-2021-24488 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/1fc0aace-ba85-4939-9007-d150960add4aCVE 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 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.