Apache OFBiz: Unauthenticated RCE via login-page widget injection
- Exploited
- No known exploitation
- Fix
- Fixed in 24.09.08
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 24.09.08.
- Last modified
- 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? →
- 30/100 · provisional
- 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
- Exploitation: none
- Automatable: yes
- Technical impact: total
Summary
Apache OFBiz has a code injection flaw that lets an attacker execute arbitrary code on the server. An attacker can trigger it by staging crafted widget XML in a multipart upload, which OFBiz then evaluates as unsandboxed Groovy.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
Improper Control of Generation of Code ('Code Injection') in Apache OFBiz 24.09 before 24.09.08 on all platforms allows a remote unauthenticated attacker to execute arbitrary code on the server by staging crafted widget XML in a multipart upload and overriding the mainDecoratorLocation used by a manager login route through an anonymous JSON request, causing OFBiz to load the staged XML through its live screen descriptor mechanism and evaluate an unsandboxed Groovy expression while rendering the authentication-failure page. Further validation established the following:
-- The exploit does not require a malformed or incomplete multipart body: a well-formed multipart request that is kept in flight and then allowed to complete normally is sufficient.
-- The screen loader reads the widget XML from a live process file descriptor while the upload is streaming, rather than from any file the attacker persists to disk.
-- The same underlying issue is also reachable through the public, explicitly unauthenticated /sfa/control/editPortalPageColumnWidth route, returning command output directly in an HTTP 200 response — it is not limited to the login-failure rendering path used in the original report.
Users are recommended to upgrade to version 24.09.08, which fixes this issue.
cve.now Index
- Exploitation0/40No signal
- Exposure20/25No login or user action needed per the CVSS vector, CISA rates it automatable · Unknown: No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity10/10CVSS 9.8, total technical impact per CISA
- No patch0/5No signal
What would change the score
- Would score about 75 if added to CISA KEV
- Would score about 70 if CISA's SSVC rates exploitation active
- Would score about 35 if advisories confirm default setups are exposed
What to do
Upgrade to a fixed version: 24.09.08.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Record last updated
- Posted on X by cve.now
Affected versions
- Apache Software Foundation Apache OFBiz
fixed in 24.09.08
Evidence 1
- Advisory
Corrections
None so far.
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Questions about CVE-2026-83542
Is CVE-2026-83542 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-2026-83542?
Apache OFBiz: before 24.09.08.Source: cve.now feed data
How do I fix CVE-2026-83542?
Upgrade to a fixed version: 24.09.08.Source: cve.now feed data