PatchTheCVECVE-2024-5540: The reflective cross-site scripting vulnerability found in ALC WebCTRL and Carrier i-Vu in versions older than
CVE-2024-5540 is a medium-severity flaw (CVSS 6.9) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The reflective cross-site scripting vulnerability found in ALC WebCTRL and Carrier i-Vu in versions older than 8.0 affects login panels allowing a malicious actor to compromise the client browser .
Why this priority
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 76%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2025-11-27 |
| Last modified | 2026-10-27 |
Last updated 2026-10-27 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-5540?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2024-5540 being exploited?
CVE-2024-5540 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-5540 affect?
CVE-2024-5540 affects affected software. Severity is medium (CVSS 6.9). The reflective cross-site scripting vulnerability found in ALC WebCTRL and Carrier i-Vu in versions older than 8.0 affects login panels allowing a malicious actor to compromise the client browser .
How urgent is CVE-2024-5540?
Priority 35/100. Remotely exploitable, no login, no user action