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CVE-2026-45087

Dalfox: Unauthenticated Remote Code Execution via `found-action` in Dalfox Server Mode

Published: May 27, 2026Updated: May 28, 2026 Sources: CVE List NVDCWE-15
10.0CRITICAL
NVD MITRE
EPSS Score
1.1%
Top 37.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

Dalfox is a powerful open-source XSS scanner and utility focused on automation. Prior to 2.13.0, when dalfox is started in REST API server mode (dalfox server), the server binds to 0.0.0.0:6664 by default and requires no API key unless the operator explicitly passes --api-key. Because model.Options — including FoundAction and FoundActionShell — is deserialized directly from attacker-supplied JSON in POST /scan, and because dalfox.Initialize explicitly propagates those two fields into the final scan options without stripping them, any unauthenticated caller who can reach the server port can supply an arbitrary shell command that the dalfox process will execute on the host whenever a scan finding is triggered. This vulnerability is fixed in 2.13.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-15CWE-78CWE-306

Affected Products

hahwul
oss-projectaka dalfox
dalfoxOn-prem
Security Products / vuln-mgmt-scanner

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/hahwul/dalfox/security/advisories/GHSA-v25v-m36w-jp4h
github.com
https://github.com/hahwul/dalfox/releases/tag/v2.13.0
github.com
News mentions
1

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