Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 2.4.5
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 2.4.5.
- Exploitation?/40Exploitation: unknown (data gap). No CISA SSVC exploitation rating yet
- Exposure3/25Reachable over the network · Data gap: No advisory context yet
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity2.1/10CVSS 2.1
- No patch0/5No signal
What would change the score
- Would score about 60 if added to CISA KEV
- Would score about 55 if CISA's SSVC rates exploitation active
- Would score about 24 if advisories confirm default setups are exposed
CVE-2026-121733 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 2.1 (low) and affects Bagisto; fixed in 2.4.5.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 5/100 · provisional
- Fix
- Fixed in 2.4.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Bagisto, an open-source Laravel-based e-commerce platform, is affected in versions before 2.4.5. An authenticated customer can upload an HTML file as a return (RMA) conversation attachment that runs malicious JavaScript in the store's web origin when an administrator opens it, potentially allowing session hijacking or actions taken on the admin's behalf.
Read the original 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.
What to do
Upgrade to a fixed version: 2.4.5.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Webkul Bagisto
fixed in 2.4.5
Evidence 6
- Patch
- Patch
- Repository
- Repository
- Repository
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-121733
Is CVE-2026-121733 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-121733?
Bagisto: before 2.4.5.Source: cve.now feed data
How do I fix CVE-2026-121733?
Upgrade to a fixed version: 2.4.5.Source: cve.now feed data