CVE-2023-46595: Algosec FireFlow · Cross-site Scripting
Affects Algosec FireFlowSource CVE Database V5
Not known to be exploited · CVSS 5.9 Medium.
Data as of 26 Oct 2026, 12:54 UTC
- 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:LExploitation evidence
Disclosed: evidence found.
CVE published 2 Nov 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Algosec Algosec FireFlow | Affected
| Fixed in– |
AI-suggested
- 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.
- Restrict access to the VisualFlow workflow editor to only trusted administrators and limit exposure to the internet or untrusted networks.
- Implement network segmentation and strict access controls around systems running Algosec FireFlow to reduce the attack surface.
- Monitor authentication logs and network traffic for unusual Net-NTLM authentication attempts or relay attack indicators.
- Enforce the use of modern authentication protocols like Kerberos and disable or restrict NTLM where possible to reduce the impact of leaked hashes.
- Conduct regular security awareness training for administrators to recognize phishing or social engineering attempts that could trigger user interaction exploitation.
- Employ web application firewalls (WAFs) with rules to detect and block XSS payloads targeting the FireFlow interface.
- 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)