CVE-2026-97315Network attack vector

Email HTML injection via unescaped form values

Published Oct 14, 2026 · Updated Oct 14, 2026

HTML injection in Responsive Blocks before 2.3.0 allows remote attackers to insert arbitrary HTML into form notification emails. The Form block incorporates submitted values into the site owner's HTML notification email without sanitizing or escaping them. No authentication is required; injected content includes phishing links, while script execution or site compromise is not established.

CVSS severity5.4
Medium
EPSS probability0.23%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in Responsive Blocks before 2.3.0 allows remote attackers to insert arbitrary HTML into form notification emails. The Form block incorporates submitted values into the site owner's HTML notification email without sanitizing or escaping them. No authentication is required; injected content includes phishing links, while script execution or site compromise is not established.

The record

CVE
CVE-2026-97315
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
CyberChimps
Product
Responsive Blocks
Classifications
CWE-74, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CyberChimps · Responsive Blocksversion=0 <2.3.0

Published CVSS scores

5.4WPScanCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1566.002Spearphishing Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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