How severe is CVE-2023-26056?

CVE-2023-26056 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

How do I fix CVE-2023-26056?

Update org.xwiki.platform:xwiki-platform-rendering-macro-context to 13.10.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-26056 is resolved across your whole dependency graph.

How do I detect CVE-2023-26056 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-rendering-macro-context, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-26056 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is CVE-2023-26056 actively exploited in the wild?

Yes. There are 2 known exploit references for CVE-2023-26056, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2023-26056?

CVE-2023-26056 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 46th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2023-26056?

CVE-2023-26056 is classified as CWE-863 (CWE-863). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2023-26056 published, and has it been updated?

CVE-2023-26056 was published on March 2, 2023 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2023-26056 — xwiki-platform-rendering-…

MEDIUMFix: xwiki/xwiki-platform@4b75f21

CVE-2023-26056 is a medium-severity (CVSS 5.4) CWE-863 vulnerability in org.xwiki.platform:xwiki-platform-rendering-macro-context. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.xwiki.platform:xwiki-platform-rendering-macro-context — see the affected versions and patch details below.

XWiki Platform allows macro execution as any user without programming rights through the context macro

Also known asGHSA-859x-p6jp-rc2w

Published

Mar 2, 2023

Updated

Oct 28, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

2 known

Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-26056.

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs46th percentile — riskier than 46% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected

☕org.xwiki.platform:xwiki-platform-rendering-macro-context☕org.xwiki.platform:xwiki-platform-rendering-macro-context☕org.xwiki.platform:xwiki-platform-rendering-macro-context

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Impact

It's possible to execute a script with the right of another user (provided the target user does not have programming right).

For example, the following:

{{context document="xwiki:XWiki.userwithscriptright" transformationContext="document"}}{{velocity}}Hello from Velocity!{{/velocity}}{{/context}}

written by a user not having script right (for example in the user's profile) should produce an error (the user is not allowed to write scripts). However, because of the vulnerability, if the author of the document "xwiki:XWiki.userwithscriptright" has script right (but not programming right) the script will be executed with as if it was written by the target user.

Patches

The problem has been patched in XWiki 14.8RC1, 14.4.5 and 13.10.10.

Workarounds

There's no workaround for this issue.

References

https://jira.xwiki.org/browse/XWIKI-19856

For more information

If you have any questions or comments about this advisory:

Open an issue in JIRA
Email us at security ML

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.xwiki.platform:xwiki-platform-rendering-macro-context`	≥ 3.0-milestone-1&&< 13.10.10	13.10.10`org.xwiki.platform:xwiki-platform-rendering-macro-context:13.10.10`
☕Maven	`org.xwiki.platform:xwiki-platform-rendering-macro-context`	≥ 14.0-rc-1&&< 14.4.5	14.4.5`org.xwiki.platform:xwiki-platform-rendering-macro-context:14.4.5`
☕Maven	`org.xwiki.platform:xwiki-platform-rendering-macro-context`	≥ 14.5&&< 14.8-rc-1	14.8-rc-1`org.xwiki.platform:xwiki-platform-rendering-macro-context:14.8-rc-1`

Affected Products

1 product · 6 configurations

Application

xwikixwiki

≥ 14.5 && < 14.8

1 version

3.0

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

XWiki Platform is a generic wiki platform. Starting in version 3.0-miles…

jira.xwiki.orgNVDMar 2023

Report on github.com

github.comNVDMar 2023

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-rendering-macro-context, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-rendering-macro-context to 13.10.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-26056 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

### Impact It's possible to execute a script with the right of another user (provided the target user does not have programming right). For example, the following: ``` {{context document="xwiki:XWiki.userwithscriptright" transformationContext="document"}}{{velocity}}Hello from Velocity!{{/velocity}}{{/context}} ``` written by a user not having script right (for example in the user's profile) should produce an error (the user is not allowed to write scripts). However, because of the vulnerability, if the author of the document "xwiki:XWiki.userwithscriptright" has script right (but not prog