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CVE-2021-25926: In SiCKRAGE, versions 9.3.54.dev1 to 10.0.11.dev1 are vulnerable to Reflected Cross-Site-Scripting (XSS) du...

In SiCKRAGE, versions 9.3.54.dev1 to 10.0.11.dev1 are vulnerable to Reflected Cross-Site-Scripting (XSS) due to user input not being validated properly in the `quicksearch` feature. Therefore, an attacker can steal a user's sessionID to masquerade as a victim user, to carry out any actions in the context of the user.

MediumCVSS 6.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

SiCKRAGE had a reflected XSS issue in its quicksearch feature. A victim who follows attacker-controlled content could have their sessionID stolen, letting the attacker act as that user. The business impact is account misuse, not server takeover.

Executive priority

Treat this as moderate priority. It requires user interaction but can compromise user sessions and permit unauthorized actions in SiCKRAGE. Prioritize internet-exposed or shared-user deployments first.

Technical view

CVE-2021-25926 is CWE-79 reflected XSS affecting SiCKRAGE 9.3.54.dev1 through 10.0.11.dev1. The issue is improper validation of quicksearch input. CVSS 3.1 is 6.1: network reachable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact.

Likely exposure

Only SiCKRAGE deployments running 9.3.54.dev1 through 10.0.11.dev1 are identified as affected. Exposure is higher where the SiCKRAGE web interface is reachable by browser users through untrusted links or networks.

Exploitation context

The source bundle says an attacker can steal a user's sessionID and act as that user. KEV is false, and the provided sources do not show active exploitation, public weaponization, or mass scanning evidence.

Researcher notes

Evidence is limited to the CVE description, affected version range, CVSS data, and a referenced upstream commit. No exploit status, fixed release number, or compensating controls are provided in the bundle.

Mitigation direction

  • Inventory SiCKRAGE deployments and identify versions in the affected range.
  • Upgrade to a version that includes the referenced upstream fix or vendor guidance.
  • If upgrading is delayed, restrict SiCKRAGE web access to trusted networks and users.
  • Review vendor release notes for any additional session or XSS guidance.

Validation and detection

  • Confirm running SiCKRAGE versions are outside 9.3.54.dev1 through 10.0.11.dev1.
  • Verify the referenced GitHub commit or equivalent fix is present in deployed code.
  • Review quicksearch input handling for proper validation and output encoding.
  • Use benign XSS validation in a controlled test environment; avoid production payload testing.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2021-25926 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2021-25926Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/asickrage9.3.54.dev1-10.0.11.dev1Listed
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.