The Web workers implementation in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2
The Web workers implementation in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2.24 allows remote attackers to bypass the Same Origin Policy and obtain sensitive authentication information via vectors involving error messages.
- Published
- Feb 6, 2014
- Updated
- Jun 16, 2026
- EPSS
- 2.3% · 83th percentile
- CWE
- CWE-346
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.3%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
| mozilla | seamonkey | cpe:2.3:a:mozilla:seamonkey |
| mozilla | thunderbird | cpe:2.3:a:mozilla:thunderbird |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| suse | suse linux enterprise software development kit | cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit |
| opensuse | opensuse | cpe:2.3:o:opensuse:opensuse |
| suse | suse linux enterprise desktop | cpe:2.3:o:suse:suse_linux_enterprise_desktop |
| suse | suse linux enterprise server | cpe:2.3:o:suse:suse_linux_enterprise_server |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
and 5 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux12.04
- canonical ubuntu linux12.10
- canonical ubuntu linux13.10
- debian debian linux7.0
- fedoraproject fedora19
- fedoraproject fedora20
- mozilla firefoxbefore 27.0
- mozilla firefox24.0 and later · before 24.3
- mozilla seamonkeybefore 2.24
- mozilla thunderbirdbefore 24.3
- opensuse opensuse11.4
- opensuse opensuse12.3
- opensuse opensuse13.1
- redhat enterprise linux desktop5.0
- redhat enterprise linux desktop6.0
- redhat enterprise linux eus6.5
- redhat enterprise linux server5.0
- redhat enterprise linux server6.0
- redhat enterprise linux server aus6.5
- redhat enterprise linux server eus6.5
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:7 | iceweasel | before 24.3.0esr-1~deb7u1 | 24.3.0esr-1~deb7u1 |
| Red Hat:enterprise_linux:5::client | firefox | before 0:24.3.0-2.el5_10 | 0:24.3.0-2.el5_10 |
| Red Hat:enterprise_linux:5::client | firefox-debuginfo | before 0:24.3.0-2.el5_10 | 0:24.3.0-2.el5_10 |
| Red Hat:enterprise_linux:5::client | thunderbird | before 0:24.3.0-2.el5_10 | 0:24.3.0-2.el5_10 |
| Red Hat:enterprise_linux:5::client | thunderbird-debuginfo | before 0:24.3.0-2.el5_10 | 0:24.3.0-2.el5_10 |
| Red Hat:enterprise_linux:6::client | firefox | before 0:24.3.0-2.el6_5 | 0:24.3.0-2.el6_5 |
| Red Hat:enterprise_linux:6::client | firefox-debuginfo | before 0:24.3.0-2.el6_5 | 0:24.3.0-2.el6_5 |
| Red Hat:enterprise_linux:6::client | thunderbird | before 0:24.3.0-2.el6_5 | 0:24.3.0-2.el6_5 |
| Red Hat:enterprise_linux:6::client | thunderbird-debuginfo | before 0:24.3.0-2.el6_5 | 0:24.3.0-2.el6_5 |
Same product
mozilla: all recordsOther highest-scoring records for the same primary product.
- CVE-2010-3765Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x befKEV94Now
- CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxeKEV87Now
- CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypassKEV86Now
- CVE-2013-1690Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properKEV86Now
- CVE-2019-17026Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion.KEV79This week
- CVE-2024-9680An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines.KEV76This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:iceweasel | 24.3.0esr-1~deb7u1 · Debian:7 | Package registry (OSV) |
| red hat:firefox | 0:24.3.0-2.el5_10 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:24.3.0-2.el5_10 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:thunderbird | 0:24.3.0-2.el5_10 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:thunderbird-debuginfo | 0:24.3.0-2.el5_10 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-346 · Origin Validation ErrorCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- JSON Hijacking (aka JavaScript Hijacking)CAPEC-111likelihood: High · High
- Cache PoisoningCAPEC-141likelihood: High · High
- DNS Cache PoisoningCAPEC-142likelihood: High · High
- Exploit Script-Based APIsCAPEC-160Medium
- Exploitation of Trusted IdentifiersCAPEC-21likelihood: High · High
- Application API Message Manipulation via Man-in-the-MiddleCAPEC-384Low
- Transaction or Event Tampering via Application API ManipulationCAPEC-385Medium
- Application API Navigation RemappingCAPEC-386Medium
ATT&CK techniques
- Access Token ManipulationT1134
- Access Token Manipulation:Token Impersonation/TheftT1134.001
- Steal Application Access TokenT1528
- Steal Web Session CookieT1539
- Use Alternate Authentication Material:Web Session CookieT1550.004
- Adversary-in-the-Middle: ARP Cache PoisoningT1557.002
- Compromise Infrastructure: DNS ServerT1584.002
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- download.novell.com/Download?buildid=VYQsgaFpQ2k
- download.novell.com/Download?buildid=Y2fux-JW1Qc
- lists.fedoraproject.org/pipermail/package-announce/2014-February/127966.html
- lists.fedoraproject.org/pipermail/package-announce/2014-February/129218.html
- lists.opensuse.org/opensuse-security-announce/2014-02/msg00004.html
- lists.opensuse.org/opensuse-security-announce/2014-02/msg00005.html
- lists.opensuse.org/opensuse-security-announce/2014-02/msg00010.html
- lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html
- osvdb.org/102873
- rhn.redhat.com/errata/RHSA-2014-0132.html
- rhn.redhat.com/errata/RHSA-2014-0133.html
- secunia.com/advisories/56706
- secunia.com/advisories/56761
- secunia.com/advisories/56763
- secunia.com/advisories/56767
- secunia.com/advisories/56787
- secunia.com/advisories/56858
- secunia.com/advisories/56888
- secunia.com/advisories/56922
- www.debian.org/security/2014/dsa-2858
Vendor advisories and official records. Exploit/PoC links are deliberately left out.