PatchSiren cyber security CVE debrief
CVE-2026-40770 RelyWP CVE debrief
CVE-2026-40770 is a HIGH severity Unauthenticated Cross Site Scripting (XSS) vulnerability in Coupon Affiliates plugin versions <= 7.5.3. The vulnerability has a CVSS score of 7.1 and was published on [cvePublishedAt](https://www.cve.org/CVERecord?id=CVE-2026-40770).
- Vendor
- RelyWP
- Product
- Coupon Affiliates
- CVSS
- HIGH 7.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-15
- Original CVE updated
- 2026-06-15
- Advisory published
- 2026-06-15
- Advisory updated
- 2026-06-15
Who should care
Users of Coupon Affiliates plugin versions <= 7.5.3 should apply patches or mitigations to prevent exploitation.
Technical summary
The vulnerability is caused by a lack of proper input validation and sanitization in the Coupon Affiliates plugin, allowing an unauthenticated attacker to inject malicious JavaScript code.
Defensive priority
HIGH
Recommended defensive actions
- Apply patches or updates to Coupon Affiliates plugin versions <= 7.5.3.
- Implement additional security measures such as input validation and sanitization.
Evidence notes
Evidence of this vulnerability was provided by Patchstack.
Official resources
-
CVE-2026-40770 CVE record
CVE.org
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CVE-2026-40770 NVD detail
NVD
-
Source item URL
nvd_modified
- Mitigation or vendor reference
CVE-2026-40770 was published on 2026-06-15T21:16:49.597Z and modified on 2026-06-15T21:24:32.790Z.