What is CVE-2010-1459?

CVE-2010-1459 is a medium-severity cross-site scripting (XSS) vulnerability in mono (nuget), affecting versions < 2.6.4. It is fixed in 2.6.4. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.

Which versions of mono are affected by CVE-2010-1459?

mono (nuget) versions < 2.6.4 is affected.

Is there a fix for CVE-2010-1459?

Yes. CVE-2010-1459 is fixed in 2.6.4. Upgrade to this version or later.

Is CVE-2010-1459 exploitable, and should I be worried?

Whether CVE-2010-1459 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2010-1459 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2010-1459 in mono

Q: Which versions of mono are affected by CVE-2010-1459?

mono (nuget) versions < 2.6.4 is affected.

Q: Is there a fix for CVE-2010-1459?

Yes. CVE-2010-1459 is fixed in 2.6.4. Upgrade to this version or later.

Q: Is CVE-2010-1459 exploitable, and should I be worried?

Whether CVE-2010-1459 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2010-1459 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2010-1459?

Upgrade mono to 2.6.4 or later.

CVE-2010-1459

CVE-2010-1459 is a medium-severity cross-site scripting (XSS) vulnerability in mono (nuget), affecting versions < 2.6.4. It is fixed in 2.6.4.

Does this CVE actually affect you?

Kodem shows which CVEs are reachable and running in your applications, so you fix what's exploitable, not just what's listed.

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Runtime intelligence, not another scanner.

Summary

Mono ASP.NET View State Cross-Site Scripting (XSS) vulnerability

The default configuration of ASP.NET in Mono before 2.6.4 has a value of FALSE for the EnableViewStateMac property, which allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated by the __VIEWSTATE parameter to 2.0/menu/menu1.aspx in the XSP sample project.

Impact

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

Affected versions

mono (< 2.6.4)

Security releases

mono → 2.6.4 (nuget)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade mono to 2.6.4 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2010-1459? CVE-2010-1459 is a medium-severity cross-site scripting (XSS) vulnerability in mono (nuget), affecting versions < 2.6.4. It is fixed in 2.6.4. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
Which versions of mono are affected by CVE-2010-1459? mono (nuget) versions < 2.6.4 is affected.
Is there a fix for CVE-2010-1459? Yes. CVE-2010-1459 is fixed in 2.6.4. Upgrade to this version or later.
Is CVE-2010-1459 exploitable, and should I be worried? Whether CVE-2010-1459 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2010-1459 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2010-1459? Upgrade mono to 2.6.4 or later.