CVE-2020-26237

Highlight.js is a syntax highlighter written in JavaScript. Highlight.js versions before 9.18.2 and 10.1.2 are vulnerable to Prototype Pollution. A malicious HTML code block can be crafted that will result in prototype pollution of the base object's prototype during highlighting. If you allow users to insert custom HTML code blocks into your page/app via parsing Markdown code blocks (or similar) and do not filter the language names the user can provide you may be vulnerable. The pollution should just be harmless data but this can cause problems for applications not expecting these properties to exist and can result in strange behavior or application crashes, i.e. a potential DOS vector. If your website or application does not render user provided data it should be unaffected. Versions 9.18.2 and 10.1.2 and newer include fixes for this vulnerability. If you are using version 7 or 8 you are encouraged to upgrade to a newer release.

Open

LOW (3.6)

S
Sebastian Kawelke detected CVE-2020-26237 with a risk of 1.8
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Sebastian Kawelke detected CVE-2020-26237 with a risk of 3.6
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System updated the risk assessment from 1.8 to 1.2
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System recalculated raw risk assessment
System updated the risk assessment from 1.2 to 3.6
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System recalculated raw risk assessment
System detected CVE-2020-26237 with scanner: container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning
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System removed scanner: sca
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System detected CVE-2020-26237 with scanner: sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca
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System detected CVE-2020-26237 with scanner: sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca
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System detected CVE-2020-26237 with scanner: container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning
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System removed scanner: sca
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System detected CVE-2020-26237 with scanner: sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca github.com/l3montree-dev/devguard/cmd/devguard-scanner/sca
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System removed scanner: sca
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System detected CVE-2020-26237 with scanner: container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning github.com/l3montree-dev/devguard/cmd/devguard-scanner/container-scanning
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System detected CVE-2020-26237 with scanner: sca
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Last calculated at:

Affected component

highlight.js

Installed version:

9.12.0

Fixed in:

9.18.2

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