The Active Content Transformation functionality in Blue Coat ProxySG before SGOS 4.3.4.2, 5.x before SGOS 5.4.5.1, 5.5 before SGOS 5.5.4.1,
The Active Content Transformation functionality in Blue Coat ProxySG before SGOS 4.3.4.2, 5.x before SGOS 5.4.5.1, 5.5 before SGOS 5.5.4.1, and 6.x before SGOS 6.1.2.1 allows remote attackers to bypass JavaScript detection via HTML entities.
- Published
- Aug 26, 2012
- Updated
- Jun 16, 2026
- EPSS
- 1.4% · 72th percentile
- CWE
- CWE-264
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Report tools
Action score
20
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.4%
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 |
|---|---|---|
| bluecoat | sgos | cpe:2.3:o:bluecoat:sgos |
| bluecoat | proxysg | cpe:2.3:h:bluecoat:proxysg |
| bluecoat | proxysg sg210-10 | cpe:2.3:h:bluecoat:proxysg_sg210-10 |
| bluecoat | proxysg sg210-25 | cpe:2.3:h:bluecoat:proxysg_sg210-25 |
| bluecoat | proxysg sg210-5 | cpe:2.3:h:bluecoat:proxysg_sg210-5 |
| bluecoat | proxysg sg510-10 | cpe:2.3:h:bluecoat:proxysg_sg510-10 |
| bluecoat | proxysg sg510-20 | cpe:2.3:h:bluecoat:proxysg_sg510-20 |
| bluecoat | proxysg sg510-25 | cpe:2.3:h:bluecoat:proxysg_sg510-25 |
| bluecoat | proxysg sg510-5 | cpe:2.3:h:bluecoat:proxysg_sg510-5 |
| bluecoat | proxysg sg810-10 | cpe:2.3:h:bluecoat:proxysg_sg810-10 |
| bluecoat | proxysg sg810-20 | cpe:2.3:h:bluecoat:proxysg_sg810-20 |
| bluecoat | proxysg sg810-25 | cpe:2.3:h:bluecoat:proxysg_sg810-25 |
and 4 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- bluecoat proxysgall versions
- bluecoat proxysg sg210-10all versions
- bluecoat proxysg sg210-25all versions
- bluecoat proxysg sg210-5all versions
- bluecoat proxysg sg510-10all versions
- bluecoat proxysg sg510-20all versions
- bluecoat proxysg sg510-25all versions
- bluecoat proxysg sg510-5all versions
- bluecoat proxysg sg810-10all versions
- bluecoat proxysg sg810-20all versions
- bluecoat proxysg sg810-25all versions
- bluecoat proxysg sg810-5all versions
- bluecoat proxysg sg9000-10all versions
- bluecoat proxysg sg9000-20all versions
- bluecoat proxysg sg9000-5all versions
- bluecoat sgosup to 4.3.4 inclusive
- bluecoat sgos3.2.6
- bluecoat sgos4.1.2.1
- bluecoat sgos4.2.1.2
- bluecoat sgos4.2.1.6
Same product
bluecoat: all recordsOther highest-scoring records for the same primary product.
- CVE-2010-5189Blue Coat ProxySG before SGOS 4.3.4.1, 5.x before SGOS 5.4.5.1, 5.5 before SGOS 5.5.4.1, and 6.x before SGOS 6.1.1.1 allows remote authentic38Monitor
- CVE-2006-0578Blue Coat Proxy Security Gateway OS (SGOS) 4.1.2.1 does not enforce CONNECT rules when using Deep Content Inspection, which allows remote at31Monitor
- CVE-2011-5126Blue Coat ProxySG 6.1 before SGOS 6.1.5.1 and 6.2 before SGOS 6.2.2.1 writes the secure heap to core images, which allows context-dependent 20Monitor
- CVE-2010-5192Cross-site scripting (XSS) vulnerability in the Java Management Console in Blue Coat ProxySG before SGOS 4.3.4.1, 5.x before SGOS 5.4.5.1, 518Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
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
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- P · data or configuration can be modified
- Availability
- none
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- P
- Availability impact
- None
Weakness class (CWE)
CWE-264 · Permissions, Privileges, and Access ControlsCVSS vector
AV:N/AC:L/Au:N/C:N/I:P/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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.