CVE-2026-121733 Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload
Low 2.1
Published
Updated
Check this codebase for CVE-2026-121733 and fix it if it is affected.
What it is: CVE-2026-121733 is a low-severity vulnerability in Webkul Bagisto, published on 3 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-121733 in the wild and no public exploit code.
Affected product: Webkul Bagisto. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-121733/ (Markdown: https://insights.sbomify.com/CVE-2026-121733/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-121733?
CVE-2026-121733 is a low-severity vulnerability in Webkul Bagisto, published on 3 Nov 2026.
Official description
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.
Weakness: CWE-434
Which versions are affected by CVE-2026-121733?
How do I fix CVE-2026-121733?
No fix has been published for CVE-2026-121733 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-121733 being exploited?
There is no known exploitation of CVE-2026-121733 in the wild and no public exploit code.
Sources
Also known as GHSA-j38w-r3vf-5255.