Security readout for executives and security teams
Plain-English summary
This issue affects a WordPress sharing plugin. A low-privileged Contributor user could save malicious script content through plugin shortcode settings, causing stored cross-site scripting when content is viewed. The source bundle does not show active exploitation or a CVSS score.
Executive priority
Treat as a moderate WordPress hygiene issue. Prioritize remediation on sites with multiple authors, external contributors, or high-value admin sessions, but the bundle does not support emergency prioritization from known exploitation.
Technical view
Simple Social Media Share Buttons before 3.2.3 failed to escape the SSB shortcode align and like_button_size parameters. The weakness is CWE-79 stored XSS and is reported as exploitable by users with Contributor-level access or higher.
Likely exposure
Exposure is likely limited to WordPress sites running this plugin before 3.2.3 where Contributor or higher accounts can create shortcode-bearing content. Risk rises if contributor accounts are untrusted, numerous, or compromised.
Exploitation context
The provided sources do not report active exploitation, and CISA KEV is false. The attack requires authenticated content creation privileges, but stored XSS can affect later viewers, including administrators, depending on where the shortcode is rendered.
Researcher notes
Evidence is narrow but consistent: the issue is parameter escaping failure in shortcode handling. No CVSS vector, proof details, exploit status, or vendor advisory beyond the WPScan reference were included in the bundle.
Mitigation direction
- Update the plugin to version 3.2.3 or later.
- Review vendor or WordPress plugin guidance for any additional hardening.
- Restrict Contributor access to trusted users only.
- Audit recent posts or pages using the affected SSB shortcode.
Validation and detection
- Inventory WordPress sites using Simple Social Media Share Buttons.
- Confirm installed plugin versions are 3.2.3 or later.
- Identify users with Contributor or higher roles on affected sites.
- Review shortcode usage for align and like_button_size parameters.
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-2021-24486 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/324e6b7b-a2ac-4c08-8b97-0967513f7328CVE 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.