CVE-2020-15138

lowpriority · track · 31EPSS 0.020 · 81 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.04% (81st) EPSS

CVSS 2.6 · low

Is it mine?

22 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

Prism is vulnerable to Cross-Site Scripting. The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer. This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the _Previewers_ plugin (>=v1.10.0) or the _Previewer: Easing_ plugin (v1.1.0 to v1.9.0). This problem is fixed in version 1.21.0. To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 2.6–7.5

v2.02.6lowAV:N/AC:H/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 4.9 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:Lprimary · NVD / NIST USexploitability 1.6 · impact 5.3

v3.17.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Lsecondary · ENISA EU

v3.17.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Lsecondary · security-advisories@github.comexploitability 1.6 · impact 5.5

v3.17.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Lsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (22)

Products and version ranges known to be affected.

Atlassian Confluence <10.0.2all versionscert_bundDE
Atlassian Confluence <10.1.1all versionscert_bundDE
Atlassian Confluence <8.5.25all versionscert_bundDE
Atlassian Confluence <9.2.7all versionscert_bundDE
Dell Data Protection Advisor <19.12all versionscert_bundDE
IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Splunk Splunk Enterprise <8.1.14all versionscert_bundDE
Splunk Splunk Enterprise <8.2.11all versionscert_bundDE
Splunk Splunk Enterprise <9.0.5all versionscert_bundDE
Atlassian Confluence< 10.0.2cert_bundDE
Atlassian Confluence< 10.1.1cert_bundDE
Atlassian Confluence< 8.5.25cert_bundDE
Atlassian Confluence< 9.2.7cert_bundDE
Dell Data Protection Advisor< 19.12cert_bundDE
Splunk Splunk Enterprise< 8.1.14cert_bundDE
Splunk Splunk Enterprise< 8.2.11cert_bundDE
Splunk Splunk Enterprise< 9.0.5cert_bundDE
PrismJS prism1.1.0, → 1.21.0enisa_euvdEU

showing 20 of 22

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1350Splunk Splunk Enterprise: Mehrere Schwachstellen in Komponenten von DrittanbieternDeutsch2023-06-01csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise in diversen Komponenten von Drittanbietern ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
GHSA-wvhm-4hhf-97x9Cross-Site Scripting in Prism2020-08-07ghsa · osvUS
### Impact The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer. This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the _Previewers_ plugin (>=v1.10.0) or the _Previewer: Easing_ plugin (v1.1.0 to v1.9.0). ### Patches This problem is patched in v1.21.0. ### Workarounds To workaround the issue without upgrading, [disable the easing preview](https://prismjs.com/plugins/previewers/#disabling-a-previewer) on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround. ### References The vulnerability was introduced by this [commit](https://github.com/PrismJS/prism/commit/4303c940d3d3a20e8ce7635bf23331c75060f5c5) on Sep 29, 2015 and fixed by [Masato Kinugawa](https://twitter.com/kinugawamasato) (#2506). ### For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/PrismJS/prism/issues).

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv NVD CVE.org MITRE

published 2020-08-07modified 2026-06-17

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+53007 more

references (12)

External citations — patches, advisories, analysis.

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