CVE-2026-126380: Vvveb before 1.0.9.0 RCE via .phar Extension Denylist Bypass in Media Upload
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.6%
EPSS score, percentile 51.4 of all scored records. A probability estimated by FIRST, not a report of exploitation.
CISA's SSVC assessment in the CVE record lists exploitation as poc.
- How severe?
- 9.4 Critical
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- before 1.0.9.0
Unaffected 1.0.9.0
Source: CISA KEV 2026.11.13, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Vvveb before 1.0.9.0 RCE via .phar Extension Denylist Bypass in Media Upload
Vvveb before 1.0.9.0 contains a denylist bypass in system/traits/media.php where '.phar' is misconfigured with a leading dot, allowing authenticated administrators to upload .phar PHP files. Attackers can upload a GIF magic-byte polyglot webshell bypassing binary inspection and execute arbitrary OS commands as the web-server user.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | before 1.0.9.0 |
| Unaffected | 1.0.9.0 |
Versions not listed are: unaffected.
Versions the record lists as unaffected: 1.0.9.0.
Source: CVE List, as of . About the data.
Weakness
CWE-434
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published |