CVE-2023-29516

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 65.9%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
9.9
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 66%
CISA-KEV: Not listedEPSS: 66%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights on XWiki.AttachmentSelector can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping in the "Cancel and return to page" button. This page is installed by default. This vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. There are no known workarounds for this vulnerability.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
—
EPSS
99.2%
KEV
Not listed

Published

April 19, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jul 21, 2026
Patch available. Sources: github_commit, github.
generic

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https://jira.xwiki.org/browse/XWIKI-20275
github Patch Available

Privilege escalation (PR) from view right on XWiki.AttachmentSelector · Advisory · xwiki/xwiki-platform · GitHub

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-3989-4c6x-725f
github_commit Patch Available

commit aca1d677c585 (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-16.10.16 (contains commit aca1d677c585)

https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.xwiki.platform:xwiki-platform-attachment-ui—14.10.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 23:09 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:23 UTCEPSS rescore
  5. 2026-07-20 17:06 UTCEPSS rescore
  6. 2026-07-19 02:27 UTCEPSS rescore
  7. 2026-07-19 02:27 UTCEPSS rescore
  8. 2026-07-16 17:01 UTCEPSS rescore
  9. 2026-07-16 17:01 UTCEPSS rescore
  10. 2026-07-15 22:53 UTCOSV refresh
  11. 2026-07-15 16:56 UTCEPSS rescore
  12. 2026-07-15 16:56 UTCEPSS rescore
  13. 2026-07-15 01:58 UTCEPSS rescore
  14. 2026-07-15 01:58 UTCEPSS rescore
  15. 2026-07-13 06:11 UTCEPSS rescore
  16. 2026-07-13 06:11 UTCEPSS rescore
  17. 2026-07-12 05:45 UTCEPSS rescore
  18. 2026-07-11 08:25 UTCEPSS rescore
  19. 2026-07-11 08:25 UTCEPSS rescore
  20. 2026-07-09 19:08 UTCEPSS rescore
  21. 2026-07-09 19:08 UTCEPSS rescore
  22. 2026-07-05 02:28 UTCEPSS rescore
  23. 2026-07-02 16:59 UTCEPSS rescore
  24. 2026-07-01 15:04 UTCEPSS rescore
  25. 2026-06-30 23:21 UTCEPSS rescore
Show 51 more
  1. 2026-06-30 23:21 UTCEPSS rescore
  2. 2026-06-27 23:34 UTCOSV refresh
  3. 2026-06-27 03:07 UTCEPSS rescore
  4. 2026-06-25 13:48 UTCEPSS rescore
  5. 2026-06-25 13:48 UTCEPSS rescore
  6. 2026-06-24 14:03 UTCEPSS rescore
  7. 2026-06-24 14:03 UTCEPSS rescore
  8. 2026-06-23 21:31 UTCEPSS rescore
  9. 2026-06-23 21:31 UTCEPSS rescore
  10. 2026-06-21 01:58 UTCEPSS rescore
  11. 2026-06-21 01:58 UTCEPSS rescore
  12. 2026-06-18 17:51 UTCEPSS rescore
  13. 2026-06-18 17:51 UTCEPSS rescore
  14. 2026-06-17 17:51 UTCEPSS rescore
  15. 2026-06-17 17:51 UTCEPSS rescore
  16. 2026-06-16 17:51 UTCEPSS rescore
  17. 2026-06-16 17:51 UTCEPSS rescore
  18. 2026-06-15 17:47 UTCEPSS rescore
  19. 2026-06-14 23:16 UTCEPSS rescore
  20. 2026-06-12 23:10 UTCEPSS rescore
  21. 2026-06-11 13:59 UTCEPSS rescore
  22. 2026-06-10 22:17 UTCEPSS rescore
  23. 2026-06-10 13:21 UTCEPSS rescore
  24. 2026-06-10 13:21 UTCEPSS rescore
  25. 2026-06-10 10:17 UTCOSV refresh
  26. 2026-06-07 15:23 UTCEPSS rescore
  27. 2026-06-07 15:23 UTCEPSS rescore
  28. 2026-06-06 13:46 UTCEPSS rescore
  29. 2026-06-06 13:46 UTCEPSS rescore
  30. 2026-06-05 22:46 UTCEPSS rescore
  31. 2026-06-05 22:46 UTCEPSS rescore
  32. 2026-06-04 13:11 UTCEPSS rescore
  33. 2026-06-04 13:11 UTCEPSS rescore
  34. 2026-06-02 20:12 UTCEPSS rescore
  35. 2026-06-02 20:12 UTCEPSS rescore
  36. 2026-06-02 20:12 UTCEPSS rescore
  37. 2026-06-01 13:51 UTCEPSS rescore
  38. 2026-05-31 22:29 UTCEPSS rescore
  39. 2026-05-31 22:29 UTCEPSS rescore
  40. 2026-05-31 22:29 UTCEPSS rescore
  41. 2026-05-29 13:43 UTCEPSS rescore
  42. 2026-05-28 13:43 UTCEPSS rescore
  43. 2026-05-28 13:43 UTCEPSS rescore
  44. 2026-05-27 13:39 UTCEPSS rescore
  45. 2026-05-27 13:39 UTCEPSS rescore
  46. 2026-05-26 13:43 UTCEPSS rescore
  47. 2026-05-26 13:43 UTCEPSS rescore
  48. 2026-05-26 07:18 UTCEPSS rescore
  49. 2026-05-26 07:18 UTCEPSS rescore
  50. 2026-05-26 07:17 UTCEPSS rescore
  51. 2026-05-25 02:44 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-29516?
CVE-2023-29516 is a critical vulnerability published on April 19, 2023. XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights on XWiki.AttachmentSelector can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper…
When was CVE-2023-29516 disclosed?
CVE-2023-29516 was first published in the National Vulnerability Database on April 19, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-29516 actively exploited?
CVE-2023-29516 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-29516?
CVE-2023-29516 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2023-29516?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-29516, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-29516

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