CVE-2021-24407Public exploitNetwork attack vector

Reflected XSS via unsanitized AJAX search query

Published Jul 6, 2021 · Updated Aug 3, 2024

Reflected XSS in TieLabs Jannah before 5.4.5 allows remote attackers to execute script in a victim's browser via an AJAX search request. The tie_ajax_search action returns the unsanitized query POST parameter in its response, so browser-interpreted markup reaches the page. No authentication is required, but a victim must submit or view the crafted response; script runs in the affected site's origin.

CVSS severity6.1
Medium
EPSS probability2.59%
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 TieLabs Jannah before 5.4.5 allows remote attackers to execute script in a victim's browser via an AJAX search request. The tie_ajax_search action returns the unsanitized query POST parameter in its response, so browser-interpreted markup reaches the page. No authentication is required, but a victim must submit or view the crafted response; script runs in the affected site's origin.

The record

CVE
CVE-2021-24407
Published
Jul 6, 2021
Updated
Aug 3, 2024
Vendor
TieLabs
Product
Jannah
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 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=5.4.5 <5.4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TieLabs · Jannahversion=5.4.5 <5.4.5

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/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 exploitPublished

Weakness, pattern, technique

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

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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