CVE-2021-24576Public exploitNetwork attack vector

Stored XSS via unsanitized accordion item titles

Published Oct 11, 2021 · Updated Aug 3, 2024

Stored XSS in Easy Accordion before 2.0.22 allows remote authenticated administrators to execute scripts through accordion item titles. The item-creation path stores an accordion title without neutralizing an injected closing script tag and image error handler, then renders it in wp-admin and published accordion pages. Administrator access is required to save the title, and execution occurs when an administrator or site visitor views the affected accordion.

CVSS severity5.4
Medium
EPSS probability0.62%
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 Easy Accordion before 2.0.22 allows remote authenticated administrators to execute scripts through accordion item titles. The item-creation path stores an accordion title without neutralizing an injected closing script tag and image error handler, then renders it in wp-admin and published accordion pages. Administrator access is required to save the title, and execution occurs when an administrator or site visitor views the affected accordion.

The record

CVE
CVE-2021-24576
Published
Oct 11, 2021
Updated
Aug 3, 2024
Vendor
ShapedPlugin LLC
Product
Easy Accordion
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=2.0.22 <2.0.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ShapedPlugin LLC · Easy Accordionversion=2.0.22 <2.0.22

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

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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