CVE-2020-15171

mediumpriority · track · 26EPSS 0.013 · 71 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.34% (71st) EPSS

CVSS 6 · medium

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

In XWiki before versions 11.10.5 or 12.2.1, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. The only workaround is to give SCRIPT right only to trusted users.

cvss

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

6.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06mediumAV:N/AC:M/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 6.4

v3.16.6mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.7 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.16.6mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · security-advisories@github.comexploitability 0.7 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.16.1mediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-74USprimaryCWE-74USCWE-94USCWE-94US

affected products (6)

Products and version ranges known to be affected.

xwiki xwiki-platform≤ <11.10.5enisa_euvdEU
xwiki xwiki-platform12.0.0, → 12.2.1enisa_euvdEU
xwiki xwiki< 11.10.5nvdUScpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
xwiki xwiki12.0.0 → 12.2.1nvdUScpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Maven org.xwiki.platform:xwiki-platform-oldcore< 11.10.5osvUSpkg:maven/org.xwiki.platform/xwiki-platform-oldcore
Maven org.xwiki.platform:xwiki-platform-oldcore12.0.0 → 12.2.1osvUSpkg:maven/org.xwiki.platform/xwiki-platform-oldcore

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-7qw5-pqhc-xm4gUsers with SCRIPT right can execute arbitrary code in XWiki2020-09-10ghsa · osvUS
### Impact Any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. ### Patches It has been patched in both version XWiki 12.2.1 and XWiki 11.10.5. ### Workarounds The only workaround is to give SCRIPT right only to trusted users. ### References https://jira.xwiki.org/browse/XWIKI-17141 https://jira.xwiki.org/browse/XWIKI-17266 It's been reported by the GitHub Security Lab under #GHSL-2020-046. ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki](https://jira.xwiki.org) * Email us at [our security mailing list](mailto:security@xwiki.org)

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2020-09-10modified 2026-06-17

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+5984 more

references (4)

External citations — patches, advisories, analysis.

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