CVE-2026-97315
Responsive Blocks < 2.3.0 - Unauthenticated HTML Injection in Form Notification Email
Unknown Responsive Blocks
CVSS
5.4MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.23%Chance of exploitation activity in the next 30 days, higher than 12% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 2.3.0Responsive BlocksCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
The Responsive Blocks WordPress plugin before 2.3.0 does not sanitise or escape some of the values submitted with its Form block before adding them to the HTML notification email sent to the site owner, allowing unauthenticated users to inject arbitrary HTML, such as phishing links, into that email.
Text from CVE List
Affected versions 1
- Responsive Blocksaffected: all versions before 2.3.0CVE List