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CVE Record

CVE-2021-24316: Mediumish <= 1.0.47 - Unauthenticated Reflected Cross-Site Scripting (XSS)

The search feature of the Mediumish WordPress theme through 1.0.47 does not properly sanitise it's 's' GET parameter before output it back the page, leading to the Cross-SIte Scripting issue.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-24316 affects the Mediumish WordPress theme. A public search page can echo attacker-controlled search text into the page without proper cleanup, enabling reflected cross-site scripting. Business risk is mainly visitor or admin session abuse if someone is persuaded to open a malicious search link.

Executive priority

Treat as a moderate-priority web risk. Prioritize internet-facing WordPress sites, especially where admins may browse while authenticated. Lack of patch detail means ownership should verify vendor guidance quickly.

Technical view

The issue is CWE-79 in WowThemes Mediumish WordPress theme through version 1.0.47. The search feature reflects the s GET parameter without proper sanitization before page output. Sources do not provide CVSS, a confirmed fixed version, or evidence of active exploitation.

Likely exposure

Exposure is likely limited to WordPress sites using the WowThemes Mediumish theme version 1.0.47 or earlier with public search functionality reachable.

Exploitation context

The source bundle describes unauthenticated reflected XSS. It requires a victim to load attacker-controlled input reflected by the search page. KEV is false, and no cited source states active exploitation.

Researcher notes

Evidence supports unauthenticated reflected XSS in the search parameter. Do not assume broader WordPress impact beyond the Mediumish theme. Patch status and CVSS are not provided in the source bundle, so remediation should be validated against vendor or WPScan updates.

Mitigation direction

  • Identify any WordPress sites using Mediumish version 1.0.47 or earlier.
  • Check WowThemes or WPScan guidance for an update or maintained replacement.
  • If no fixed version is available, replace or remove the theme.
  • Ensure search output is escaped or sanitized before rendering.
  • Monitor web logs for suspicious search-parameter activity.

Validation and detection

  • Inventory active WordPress themes across production and staging sites.
  • Confirm the installed Mediumish version from WordPress administration or asset records.
  • Review the search template for safe output escaping of the search parameter.
  • Use non-invasive security testing to confirm reflected input is not rendered as executable content.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · medium confidence lookup

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.

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cve · low confidence lookup

CVE-2021-24316 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
WowThemesMediumish1.0.47Listed
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.