CVE-2010-1330

Exp

The regular expression engine in JRuby before 1.4.1, when $KCODE is set to 'u', does not properly handle characters immediately after a UTF-8 character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted string.

Published: 2012-11-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2010-1330 is rated High Exploit Risk (62.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.22%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.79% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2010-1330

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2010-1330

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.43% 2.22% +1.79%
2 2025-03-30 0.79% 0.43% -0.37%
3 2025-03-29 0.79%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-1330

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2010-1330

GitHub Security Advisory for CVE-2010-1330

GHSA-wmq2-jc9m-xp4m · Severity: medium · Ecosystem: maven — Cross-site Scripting in in JRuby

OS Trackers for CVE-2010-1330

vendor priority summary link
debian not yet assigned CVE-2010-1330 not yet assigned priority: Debian including 1 source packages (jruby), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2010-1330
redhat medium https://access.redhat.com/security/cve/CVE-2010-1330

Affected software / configurations for CVE-2010-1330

Vendor Product Version Raw CPE
jruby jruby <= 1.4.0 cpe:2.3:a:jruby:jruby:*:*:*:*:*:*:*:*
jruby jruby 0.9.0 cpe:2.3:a:jruby:jruby:0.9.0:*:*:*:*:*:*:*
jruby jruby 0.9.1 cpe:2.3:a:jruby:jruby:0.9.1:*:*:*:*:*:*:*
jruby jruby 0.9.2 cpe:2.3:a:jruby:jruby:0.9.2:*:*:*:*:*:*:*
jruby jruby 0.9.8 cpe:2.3:a:jruby:jruby:0.9.8:*:*:*:*:*:*:*
jruby jruby 0.9.9 cpe:2.3:a:jruby:jruby:0.9.9:*:*:*:*:*:*:*
jruby jruby 1.0.0 cpe:2.3:a:jruby:jruby:1.0.0:*:*:*:*:*:*:*
jruby jruby 1.0.0 cpe:2.3:a:jruby:jruby:1.0.0:rc1:*:*:*:*:*:*
jruby jruby 1.0.0 cpe:2.3:a:jruby:jruby:1.0.0:rc2:*:*:*:*:*:*
jruby jruby 1.0.0 cpe:2.3:a:jruby:jruby:1.0.0:rc3:*:*:*:*:*:*
jruby jruby 1.0.1 cpe:2.3:a:jruby:jruby:1.0.1:*:*:*:*:*:*:*
jruby jruby 1.0.2 cpe:2.3:a:jruby:jruby:1.0.2:*:*:*:*:*:*:*
jruby jruby 1.0.3 cpe:2.3:a:jruby:jruby:1.0.3:*:*:*:*:*:*:*
jruby jruby 1.1 cpe:2.3:a:jruby:jruby:1.1:*:*:*:*:*:*:*
jruby jruby 1.1 cpe:2.3:a:jruby:jruby:1.1:beta1:*:*:*:*:*:*
jruby jruby 1.1 cpe:2.3:a:jruby:jruby:1.1:rc1:*:*:*:*:*:*
jruby jruby 1.1 cpe:2.3:a:jruby:jruby:1.1:rc2:*:*:*:*:*:*
jruby jruby 1.1 cpe:2.3:a:jruby:jruby:1.1:rc3:*:*:*:*:*:*
jruby jruby 1.1.1 cpe:2.3:a:jruby:jruby:1.1.1:*:*:*:*:*:*:*
jruby jruby 1.1.2 cpe:2.3:a:jruby:jruby:1.1.2:*:*:*:*:*:*:*
jruby jruby 1.1.3 cpe:2.3:a:jruby:jruby:1.1.3:*:*:*:*:*:*:*
jruby jruby 1.1.4 cpe:2.3:a:jruby:jruby:1.1.4:*:*:*:*:*:*:*
jruby jruby 1.1.5 cpe:2.3:a:jruby:jruby:1.1.5:*:*:*:*:*:*:*
jruby jruby 1.1.6 cpe:2.3:a:jruby:jruby:1.1.6:*:*:*:*:*:*:*
jruby jruby 1.1.6 cpe:2.3:a:jruby:jruby:1.1.6:rc1:*:*:*:*:*:*
jruby jruby 1.2.0 cpe:2.3:a:jruby:jruby:1.2.0:*:*:*:*:*:*:*
jruby jruby 1.2.0 cpe:2.3:a:jruby:jruby:1.2.0:rc1:*:*:*:*:*:*
jruby jruby 1.2.0 cpe:2.3:a:jruby:jruby:1.2.0:rc2:*:*:*:*:*:*
jruby jruby 1.3.0 cpe:2.3:a:jruby:jruby:1.3.0:*:*:*:*:*:*:*
jruby jruby 1.3.0 cpe:2.3:a:jruby:jruby:1.3.0:rc1:*:*:*:*:*:*
jruby jruby 1.3.0 cpe:2.3:a:jruby:jruby:1.3.0:rc2:*:*:*:*:*:*
jruby jruby 1.3.1 cpe:2.3:a:jruby:jruby:1.3.1:*:*:*:*:*:*:*
jruby jruby 1.4.0 cpe:2.3:a:jruby:jruby:1.4.0:rc1:*:*:*:*:*:*
jruby jruby 1.4.0 cpe:2.3:a:jruby:jruby:1.4.0:rc2:*:*:*:*:*:*
jruby jruby 1.4.0 cpe:2.3:a:jruby:jruby:1.4.0:rc3:*:*:*:*:*:*

References for CVE-2010-1330

cvelogic Threat Intelligence