Security readout for executives and security teams
Plain-English summary
A WordPress plugin called ShareBang (Ultimate Social Share Buttons), version 1.4 and earlier, has a reflected cross-site scripting flaw. An attacker can craft a malicious link that, when clicked by a logged-in user, runs scripts in their browser. This could hijack admin sessions or redirect visitors. Impact is limited but real for sites using this plugin.
Executive priority
Schedule for the next maintenance window. Treat as moderate risk for any public WordPress site running ShareBang; higher priority if marketing or admin staff are likely to click external links from untrusted sources.
Technical view
CVE-2025-49953 is a reflected XSS (CWE-79) in themeinity's ShareBang WordPress plugin versions through 1.4. CVSS 3.1 base score is 7.1 with scope change (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L). User interaction is required; an unauthenticated attacker delivers a crafted URL that reflects unsanitized input into a rendered page, executing script in the victim's browser context.
Likely exposure
Any WordPress site running themeinity's ShareBang Ultimate Social Share Buttons plugin at version 1.4 or earlier is potentially exposed. Public-facing sites with logged-in administrators or content editors face the highest risk because session theft would yield privileged access.
Exploitation context
No active exploitation is reported in the source bundle, and the CVE is not listed in CISA KEV. The flaw is reflected XSS, so an attacker must convince a victim to click a crafted link. No public proof-of-concept or exploit kit is cited in the provided sources.
Researcher notes
CVSS 3.1 base 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) reflects a reflected XSS with scope change and user interaction. CWE-79. Affected through 1.4; no fixed version is named in the provided bundle. Patchstack is the primary VDB source. KEV flag is false. Verify any patched release on the themeinity vendor page before declaring remediation complete.
Mitigation direction
- Inventory WordPress sites for the ShareBang plugin and identify any running version 1.4 or earlier.
- Check Patchstack and the themeinity vendor page for an updated plugin release and apply it once available.
- If no fix exists, deactivate and remove the ShareBang plugin until a patched version is published.
- Add a web application firewall rule to filter reflected XSS payloads on plugin endpoints.
- Enforce a strict Content Security Policy to limit inline script execution on the WordPress front end.
- Train administrators and editors to avoid clicking unsolicited links to their own WordPress site.
Validation and detection
- Use wp-cli or the admin Plugins page to confirm whether ShareBang is installed and list its version.
- Search site code and database for references to the sharebang plugin slug to find dormant installs.
- Review web server and WAF logs for suspicious query parameters targeting ShareBang endpoints.
- Confirm against Patchstack and the vendor page whether a fixed plugin version has been released.
- After patching or removal, re-scan the site with a vulnerability scanner to confirm the issue is gone.
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
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ATT&CK lookup starting points
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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-2025-49953 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (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:L
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:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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.