Security readout for executives and security teams
Plain-English summary
CVE-2021-24548 is a stored cross-site scripting issue in the Mimetic Books WordPress plugin through version 0.2.13. An authenticated user could store script content in the plugin's Default Publisher ID setting, potentially affecting later users who view the affected plugin settings or output.
Executive priority
Treat this as a targeted WordPress plugin hygiene issue, not an internet-wide emergency based on the provided evidence. Prioritize sites where many users manage WordPress content or where administrator sessions are high-value.
Technical view
The issue is CWE-79 in Mimetic Books through 0.2.13. The vulnerable input is the Default Publisher ID field on the plugin settings page. The provided sources do not include CVSS data, a fixed version, affected CPEs, or confirmed exploit activity.
Likely exposure
Exposure is likely limited to WordPress sites with Mimetic Books installed at version 0.2.13 or earlier, where authenticated users can access the relevant plugin settings page. The sources do not clarify the exact required role or whether front-end output is affected.
Exploitation context
The source bundle does not show active exploitation, and the CVE is not listed as CISA KEV. Because this is stored XSS, business impact depends on who can write the field and who later views rendered content.
Researcher notes
Evidence is sparse. WPScan and CVE identify authenticated stored XSS in one settings field, but do not provide CVSS, exploit maturity, role requirements, or a patch reference in the provided bundle. Validate exposure before assigning urgency.
Mitigation direction
- Inventory WordPress sites for Mimetic Books installations.
- Check whether installed versions are 0.2.13 or earlier.
- Review WPScan and vendor guidance for a fixed version or official mitigation.
- Disable or remove the plugin if it is unused or unsupported.
- Restrict plugin settings access to trusted administrators only.
Validation and detection
- Confirm the plugin name and version from WordPress administration or asset inventory.
- Review user roles with access to the Mimetic Books settings page.
- Inspect the Default Publisher ID value for unexpected script-like content.
- Check web logs and admin audit logs for recent plugin settings changes.
- Document whether the site uses the plugin in production.
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-2021-24548 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/10660c95-d366-4152-9ce8-b57c57a2ec6cCVE 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.