CVE-2026-129259
Mereithhh VanBlog Image Upload Endpoint access.ts cross site scripting
- Medium 5.1
- A public exploit reference is listed
Description
A weakness has been identified in Mereithhh VanBlog up to 0.54.0. This affects an unknown part of the file packages/server/src/types/access/access.ts of the component Image Upload Endpoint. Executing a manipulation can lead to cross site scripting. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Key facts
- Published
- 14 Nov 2026
- Last changed
- 14 Nov 2026
- Assigned by
- VulDB
- EPSS
- 0.311% likely to be exploited in the next 30 days, higher than 24.349% of CVEs (scores for 15 Nov 2026)
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 5.1CVSS 4.0, Mediumfrom the CNA (VulDB)
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 - 3.5CVSS 3.1, Lowfrom the CNA (VulDB)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C - 3.5CVSS 3.0, Lowfrom the CNA (VulDB)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C - 4.0CVSS 2.0, Mediumfrom the CNA (VulDB)
AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Mereithhh | VanBlog |
|
Timeline
- 13 Nov 2026 Advisory disclosed
- 13 Nov 2026 VulDB entry created
- 13 Nov 2026 VulDB entry last update
- 14 Nov 2026 Published
Weakness
Practice this bug class
HackZoneLabs has a hands-on lab on XSS (stored, reflected, DOM) (CWE-79).