CVE-2026-1823Network attack vector

Stored XSS via unescaped shortcode src attribute

Published Mar 7, 2026 · Updated Mar 7, 2026

Stored XSS in Consensus Embed 1.6 and earlier allows remote authenticated users to inject scripts through the consensus shortcode. The shortcode places its user-controlled src attribute into an iframe src value without sufficient sanitization or attribute escaping. Contributor-level access is required to save the payload; it executes in browsers that view the affected page and can act within those WordPress sessions.

CVSS severity6.4
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Consensus Embed 1.6 and earlier allows remote authenticated users to inject scripts through the consensus shortcode. The shortcode places its user-controlled src attribute into an iframe src value without sufficient sanitization or attribute escaping. Contributor-level access is required to save the payload; it executes in browsers that view the affected page and can act within those WordPress sessions.

The record

CVE
CVE-2026-1823
Published
Mar 7, 2026
Updated
Mar 7, 2026
Vendor
Consensus
Product
Consensus Embed
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 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=* <=1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Consensus · Consensus Embedversion=* <=1.6

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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