CVE-2021-25926Network attack vector

Session hijacking via unsanitized quicksearch input

Published Apr 12, 2021 · Updated Apr 30, 2025

Reflected XSS in SiCKRAGE 9.3.54.dev1 through 10.0.11.dev1 allows remote attackers to steal session IDs via quicksearch. The quicksearch path obtained request data through BaseHandler.get_argument, which returned it without HTML sanitization before reflection. A victim must open attacker-controlled content; the injected script then runs in the victim's browser and enables session impersonation and actions permitted to that account.

CVSS severity6.1
Medium
EPSS probability0.82%
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 SiCKRAGE 9.3.54.dev1 through 10.0.11.dev1 allows remote attackers to steal session IDs via quicksearch. The quicksearch path obtained request data through BaseHandler.get_argument, which returned it without HTML sanitization before reflection. A victim must open attacker-controlled content; the injected script then runs in the victim's browser and enables session impersonation and actions permitted to that account.

The record

CVE
CVE-2021-25926
Published
Apr 12, 2021
Updated
Apr 30, 2025
Vendor
SiCKRAGE
Product
SiCKRAGE
Classifications
CWE-79, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=9.3.54.dev1-10.0.11.dev1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SiCKRAGE · SiCKRAGEversion=9.3.54.dev1-10.0.11.dev1

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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