CVE-2021-24941Network attack vector

Reflected XSS via unescaped message identifier

Published Dec 21, 2021 · Updated Aug 3, 2024

Reflected XSS in Icegram Engage before 2.0.5 allows remote attackers to execute script in a visitor's browser via a crafted request. The get_message_action_row AJAX handler places the unsanitized, unescaped message_id parameter into an HTML attribute, allowing attribute-context script injection. Exploitation requires a user to open the crafted request; injected script runs in the affected site's origin and can read or alter browser-accessible page data.

CVSS severity6.1
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Icegram Engage before 2.0.5 allows remote attackers to execute script in a visitor's browser via a crafted request. The get_message_action_row AJAX handler places the unsanitized, unescaped message_id parameter into an HTML attribute, allowing attribute-context script injection. Exploitation requires a user to open the crafted request; injected script runs in the affected site's origin and can read or alter browser-accessible page data.

The record

CVE
CVE-2021-24941
Published
Dec 21, 2021
Updated
Aug 3, 2024
Vendor
Icegram
Product
Icegram Engage
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 21, 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=2.0.5 <2.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Icegram · Icegram Engageversion=2.0.5 <2.0.5

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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