CVE-2026-121733

Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload

2.1 Low

Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Passive

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: None

Exploit likelihood

0.18%Unchanged since Nov 4, 2026

What each source reports

CVE List Score used 2.1

Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload

Record: CVE-2026-121733
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-434
Updated: 2026-11-04

EUVDEUVD-2026-116591 2.1

Record: EUVD-2026-116591
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Updated: 2026-11-04

GitHub AdvisoriesGHSA-j38w-r3vf-5255 2.1

Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows...

Record: GHSA-j38w-r3vf-5255
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-434
Updated: 2026-11-04

NVD 2.1

Record: CVE-2026-121733
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-434
Updated: 2026-11-04

OSV 2.1

Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload

Record: CVE-2026-121733
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Weakness: CWE-434
Updated: 2026-11-05

Affected products

webkul bagisto

History

History
Recorded	Changed	Sources
Nov 4, 2026	published	CVE List, EUVD
Nov 4, 2026	references	OSV
Nov 4, 2026	published	EUVD, NVD
Nov 4, 2026	aliases, published, references	EUVD, GitHub Advisories
Nov 4, 2026	first indexed	CVE List

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-121733 is a low vulnerability (CVSS 2.1) in Webkul Bagisto, published November 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.