Security Digest · Vulnerability record
CVE-2023-49599: WWBN AVideo Insufficient Entropy vulnerbaility
An insufficient entropy vulnerability exists in the salt generation functionality of WWBN AVideo dev master commit 15fed957fb.
CVSS 9.8 Critical EPSS 1.0% · p61
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.0%, percentile 61: FIRST’s model estimates a 1.0% chance of exploitation activity in the next 30 days, higher than 61% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
wwbn/avideo(Composer (PHP)) <= 12.4, no fixed version listed. Check your lockfile, including transitive dependencies.
What it is
An insufficient entropy vulnerability exists in the salt generation functionality of WWBN AVideo dev master commit 15fed957fb. A specially crafted series of HTTP requests can lead to privilege escalation. An attacker can gather system information via HTTP requests and brute force the salt offline, leading to forging a legitimate password recovery code for the admin user.
From the GitHub advisory
An insufficient entropy vulnerability exists in the salt generation functionality of WWBN AVideo dev master commit 15fed957fb. A specially crafted series of HTTP requests can lead to privilege escalation. An attacker can gather system information via HTTP requests and bruteforce the salt offline, leading to forging a legitimate password recovery code for the admin user.
Weakness type: CWE-331.
Product: wwbn/avideo (Composer (PHP)) · Assigned by: talos · Published: 2024-01-10
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Composer (PHP) | wwbn/avideo | <= 12.4 | none listed |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| WWBN | AVideo | dev master commit 15fed957fb |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| talos | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.96% probability of exploitation activity in the next 30 days; percentile 61.
Timeline
- — CVE record published by talos
- — GitHub-reviewed advisory GHSA-wqcc-qf63-c2x4 published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-wqcc-qf63-c2x4 github.com
- CVE.org record CVE-2023-49599 cve.org
- NVD entry CVE-2023-49599 nvd.nist.gov
Other references from the CVE record and advisory
- talosintelligence.com talosintelligence.com
- talosintelligence.com talosintelligence.com
- github.com github.com
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