CVE-2021-25876
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities...
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities via the u parameter which allows a remote attacker to steal administrators' session cookies or perform actions as an administrator.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities via the u parameter which allows a remote attacker to steal administrators' session cookies or perform actions as an administrator.
- Record
CVE-2021-25876- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities via the u parameter which allows a remote attacker to steal administrators' session cookies or perform actions as an administrator.
- Record
CVE-2021-25876- Updated
- 2026-11-02
EUVDEUVD-2021-12756 No score
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities via the u parameter which allows a remote attacker to steal administrators' session cookies or perform actions as an administrator.
- Record
EUVD-2021-12756- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-v66q-3xcx-65j2
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities...
AVideo/YouPHPTube 10.0 and prior has multiple reflected Cross Script Scripting vulnerabilities via the u parameter which allows a remote attacker to steal administrators' session cookies or perform actions as an administrator.
- Record
GHSA-v66q-3xcx-65j2- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-25876 is a medium vulnerability (CVSS 6.1) in Youphptube, published November 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.87%, the 59th percentile. No source names a fixed version.