Advisory details:
github_osv / GHSA-3mjv-375j-6h92
| Advisory ID | github_osv/GHSA-3mjv-375j-6h92 |
| Aliases |
CVE-2026-45731
|
| Summary | AVideo: Authenticated Arbitrary File Read in view/update.php ### Summary view/update.php reads $_POST['updateFile'] as a relative path under updatedb/ and passes it to PHP's file() for line-by-line execution as part of a database migration. An authenticated administrator can abuse this to read arbitrary text files reachable from the web-server process — especially valuable on misconfigured deployments where /etc/passwd, .env, or other sibling-app configs are reachable relative to the AVideo directory. ### Details view/update.php, lines 134-145 (excerpt): if (!empty($_POST['updateFile'])) { $dir = Video::getStoragePath() . "cache"; rrmdir($dir); /* …unrelated cache-clear… */ if (file_exists($logfile . "log")) { unlink($logfile . "log"); // ... } $lines = file("{$global['systemRootPath']}updatedb/{$_POST['updateFile']}"); The User::isAdmin() and adminSecurityCheck(true) guards at lines 12-15 enforce admin auth, but $_POST['updateFile'] is concatenated into a path without any sanitization. file() returns the file's contents as an array of lines; the script subsequently iterates them and echoes the SQL it would run. ### PoC POST /view/update.php Content-Type: application/x-www-form-urlencoded updateFile=../../../../etc/passwd Result: the script attempts to load /etc/passwd (relative to {systemRootPath}updatedb/), echoing each line in the migration-runner HTML output. $_POST['updateFile'] traversal accepted, no extension guard, no in-array whitelist. Attempting ../../../../proc/self/environ similarly reveals web-server environment variables on Linux. ### Impact Verified on the current master branch of WWBN/AVideo (commit bc0340662…). Likely affected: every release where view/update.php contains the $_POST['updateFile'] consumer — pattern predates 2024. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.2 |
| Risk | 3.1 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 4.9 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-3mjv-375j-6h92/GHSA-3mjv-375j-6h92.json |
| cvssv4 | 6.9 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-3mjv-375j-6h92/GHSA-3mjv-375j-6h92.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/WWBN/AVideo | ||
| https://github.com/WWBN/AVideo/security/advisories/GHSA-3mjv-375j-6h92 | ||
| CVE-2026-45731 | https://nvd.nist.gov/vuln/detail/CVE-2026-45731 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-29T14:03:06Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/45xxx/CVE-2026-45731.json
Source Advisory: vulnrichment/CVE-2026-45731
[{'Exploitation': 'poc'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]