PatchSiren cyber security CVE debrief
CVE-2026-112840 Brainstorm Force CVE debrief
A Cross Site Scripting (XSS) vulnerability exists in the WordPress SureCart plugin from n/a through version 4.9.5. This issue, known as CVE-2026-112840, was published on 2026-10-20T15:10:54.998Z and last modified on 2026-10-21T10:35:08.866Z. The vulnerability allows for Stored XSS and has a CVSS score of 6.5, classified as MEDIUM. Defenders should assess exposure and implement necessary controls. The vulnerability exists due to improper neutralization of input during web page generation, allowing attackers to inject malicious scripts. Affected versions of the SureCart plugin require immediate attention to prevent potential exploitation.
- Vendor
- Brainstorm Force
- Product
- SureCart
- CVSS
- MEDIUM 6.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-10-20
- Original CVE updated
- 2026-10-21
- Advisory published
- 2026-10-20
- Advisory updated
- 2026-10-21
Who should care
Defenders responsible for WordPress installations using the SureCart plugin, especially those using versions up to 4.9.5, should assess exposure and implement necessary controls.
Why it matters
CVE-2026-112840 is a Cross Site Scripting (XSS) vulnerability in the WordPress SureCart plugin from n/a through version 4.9.5. Defenders should assess exposure, implement compensating controls, monitor for exploitation attempts, and prioritize remediation for affected versions.
- Verification of exposure for WordPress installations using SureCart plugin versions up to 4.9.5
- Implementation of compensating controls to mitigate potential XSS attacks
- Monitoring for exploitation attempts targeting the SureCart plugin vulnerability
- Remediation priority for affected versions to prevent potential exploitation
Technical summary
The WordPress SureCart plugin is vulnerable to Cross Site Scripting (XSS) from n/a through version 4.9.5. This vulnerability, identified as CVE-2026-112840, allows for Stored XSS and has been assessed with a CVSS score of 6.5. The vulnerability arises from the plugin's failure to properly sanitize user input, enabling attackers to store and execute malicious scripts. Defenders should prioritize assessing exposure and implementing compensating controls for WordPress installations using SureCart plugin versions up to 4.9.5.
Defensive priority
Defenders should prioritize assessing exposure and implementing compensating controls for WordPress installations using SureCart plugin versions up to 4.9.5.
Recommended defensive actions
- Assess exposure of WordPress installations using SureCart plugin versions up to 4.9.5
- Implement compensating controls for affected versions
- Monitor for potential exploitation attempts
- Verify vendor remediation and apply patches as available
Evidence notes
The CVE record and source item provide details on the vulnerability, including its existence in SureCart plugin versions up to 4.9.5 and the CVSS score. However, additional information on exploitation, impact, and remediation may be required for comprehensive risk assessment.
Sources and references
Verified primary and authoritative sources
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CVE-2026-112840 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-112840
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-112840 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-112840
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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WordPress SureCart plugin <= 4.9.5 - Cross Site Scripting (XSS) vulnerability
Unverified legacy reference
URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/112xxx/CVE-2026-112840.json
cve_program_cvelist_v5
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.