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CVE-2023-46595VulnerabilityPublished Updated

CVE-2023-46595: Algosec FireFlow · Cross-site Scripting

Affects Algosec FireFlowSource CVE Database V5

0

Not known to be exploited · CVSS 5.9 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Nov 2023

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Algosec Algosec FireFlowAffected
  • =32.20
  • =32.50
Fixed in–

AI-suggested

1. Apply the official patches released by Algosec in versions A32.20 (b570 or above) and A32.50 (b390 or above) immediately to remediate the vulnerability. 2. Restrict access to the VisualFlow workflow editor to only trusted administrators and limit exposure to the internet or untrusted networks. 3. Implement network segmentation and strict access controls around systems running Algosec FireFlow to reduce the attack surface. 4. Monitor authentication logs and network traffic for unusual Net-NTLM authentication attempts or relay attack indicators. 5. Enforce the use of modern authentication protocols like Kerberos and disable or restrict NTLM where possible to reduce the impact of leaked hashes. 6. Conduct regular security awareness training for administrators to recognize phishing or social engineering attempts that could trigger user interaction exploitation. 7. Employ web application firewalls (WAFs) with rules to detect and block XSS payloads targeting the FireFlow interface. 8. Review and harden browser security settings for administrators accessing the FireFlow editor to mitigate the risk of HTML injection exploitation.

Description

Net-NTLM leak via HTML injection in FireFlow VisualFlow workflow editor allows an attacker to obtain victim’s domain credentials and Net-NTLM hash which can lead to relay domain attacks. Fixed in A32.20 (b570 or above), A32.50 (b390 or above)

References

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