CVE-2026-9357
vBulletin Login cross site scripting
- State
- Published
- Severity
- 5.1 Medium
- Published
- May 24, 2026
- Updated
- May 26, 2026
- Reserved
- May 23, 2026
Description
A vulnerability was found in vBulletin 6.x. This impacts an unknown function of the component Login. Performing a manipulation results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. VulDB is withholding an extended redistribution of exploit details to prevent simplified exploitation. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.5 Low | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.5 Low | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
vBulletinn/a |
|
References
- VDB-365320 | vBulletin Login cross site scriptingvdb-entry
- VDB-365320 | CTI Indicators (IOB, IOC, TTP)signaturepermissions-required
- Submit #813052 | Cross Site Scripting no fórum vBulletin 6.xx Vbulletin 6.x.x Cross Site Scriptingthird-party-advisory
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