CVE-2021-29033Public exploitNetwork attack vector

Authenticated script execution via crafted admin URI

Published Mar 24, 2021 · Updated Aug 3, 2024

Cross-site scripting in Bitweaver 3.1.0 allows remote authenticated users to execute JavaScript through the edit-group admin URI. The /users/admin/edit_group.php route reflects a crafted trailing path segment into the returned page without neutralizing script markup. An administrator must open the crafted URL while authenticated; execution occurs in that user's browser context and can expose session cookies or support account takeover.

CVSS severity4.8
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Bitweaver 3.1.0 allows remote authenticated users to execute JavaScript through the edit-group admin URI. The /users/admin/edit_group.php route reflects a crafted trailing path segment into the returned page without neutralizing script markup. An administrator must open the crafted URL while authenticated; execution occurs in that user's browser context and can expose session cookies or support account takeover.

The record

CVE
CVE-2021-29033
Published
Mar 24, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 24, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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')
T1539Steal Web Session Cookie

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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