CVE-2023-35156

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 2.1% (80th percentile of EPSS-scored CVEs). 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
Elevated
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.1%CVSS: 9.6Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the delete template to perform a XSS, e.g. by using URL such as: > xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=delete.vm&xredirect=javascript:alert(document.domain). This vulnerability exists since XWiki 6.0-rc-1. The vulnerability has been patched in XWiki 14.10.6 and 15.1. Note that a partial patch has been provided in 14.10.5 but wasn't enough to entirely fix the vulnerability.

CVSS v3
9.6
EG Score
9.6CRITICALmedium confidence
EG Risk
59
EG Risk 59/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity96% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
2.1%
EPSS %ILE
80th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 23, 2023

Last Modified

November 21, 2024

Advisory Details (7)

Auto-updated Oct 2, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github_commit Patch Available

commit e80d22d193df (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-18.2.0 (contains commit e80d22d193df)

https://github.com/xwiki/xwiki-platform/commit/e80d22d193df364b07bab7925572720f91a8984a
github_commit Patch Available

commit 24ec12890ac7 (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-18.2.0 (contains commit 24ec12890ac7)

https://github.com/xwiki/xwiki-platform/commit/24ec12890ac7fa6daec8d0b3435cfcba11362fd5
github_commit Patch Available

commit 13875a6437d4 (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-18.2.0 (contains commit 13875a6437d4)

https://github.com/xwiki/xwiki-platform/commit/13875a6437d4525ac4aeea25918f2d2dffac9ee1
generic

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https://jira.xwiki.org/browse/XWIKI-20672
generic

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https://jira.xwiki.org/browse/XWIKI-20583
generic🟡 PoC Available

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https://jira.xwiki.org/browse/XWIKI-20341
githubMentions a patch (unverified)

RXSS via xredirect parameter in delete template · Advisory · xwiki/xwiki-platform · GitHub

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-834c-x29c-f42c

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.xwiki.platform:xwiki-platform-flamingo-skin-resources—
  • 6.0-rc-1 up to 14.10.6: fixed in 14.10.6
  • 15.0-rc-0 up to 15.1: fixed in 15.1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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.

Showing the most recent 100 of 182 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:06 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-06 15:15 UTCEPSS rescore
  5. 2026-10-05 17:41 UTCEPSS rescore
  6. 2026-10-04 23:20 UTCEPSS rescore
  7. 2026-10-03 14:23 UTCEPSS rescore
  8. 2026-09-30 16:25 UTCEG score recompute
  9. 2026-09-30 15:01 UTCEPSS rescore
  10. 2026-09-29 15:16 UTCEPSS rescore
  11. 2026-09-28 13:49 UTCEPSS rescore
  12. 2026-09-27 13:42 UTCEPSS rescore
  13. 2026-09-26 15:55 UTCEPSS rescore
  14. 2026-09-26 00:22 UTCEPSS rescore
  15. 2026-09-24 14:01 UTCEPSS rescore
  16. 2026-09-24 14:01 UTCEPSS rescore
  17. 2026-09-23 13:45 UTCEPSS rescore
  18. 2026-09-23 08:53 UTCOSV refresh
  19. 2026-09-22 14:45 UTCEPSS rescore
  20. 2026-09-16 14:05 UTCEPSS rescore
  21. 2026-09-12 14:58 UTCEPSS rescore
  22. 2026-09-11 14:50 UTCEPSS rescore
  23. 2026-09-11 09:34 UTCEPSS rescore
  24. 2026-09-08 21:57 UTCEPSS rescore
  25. 2026-09-07 15:59 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 13:45 UTCEPSS rescore
  2. 2026-09-05 15:26 UTCEPSS rescore
  3. 2026-09-04 13:58 UTCEPSS rescore
  4. 2026-09-04 05:04 UTCEPSS rescore
  5. 2026-09-04 03:46 UTCOSV refresh
  6. 2026-09-02 14:09 UTCEPSS rescore
  7. 2026-09-01 13:51 UTCEPSS rescore
  8. 2026-08-30 19:15 UTCEPSS rescore
  9. 2026-08-30 01:20 UTCEPSS rescore
  10. 2026-08-28 21:38 UTCEPSS rescore
  11. 2026-08-27 14:23 UTCEPSS rescore
  12. 2026-08-26 14:43 UTCEPSS rescore
  13. 2026-08-25 13:46 UTCEPSS rescore
  14. 2026-08-24 14:14 UTCEPSS rescore
  15. 2026-08-23 00:17 UTCEPSS rescore
  16. 2026-08-21 23:47 UTCEPSS rescore
  17. 2026-08-20 22:53 UTCEPSS rescore
  18. 2026-08-19 17:02 UTCEPSS rescore
  19. 2026-08-18 13:46 UTCEPSS rescore
  20. 2026-08-17 14:59 UTCOSV refresh
  21. 2026-08-17 13:45 UTCEPSS rescore
  22. 2026-08-16 14:54 UTCEPSS rescore
  23. 2026-08-16 02:12 UTCEPSS rescore
  24. 2026-08-15 01:28 UTCEPSS rescore
  25. 2026-08-13 21:58 UTCEPSS rescore
  26. 2026-08-12 13:48 UTCEPSS rescore
  27. 2026-08-11 13:39 UTCEPSS rescore
  28. 2026-08-09 13:44 UTCEPSS rescore
  29. 2026-08-08 16:34 UTCEPSS rescore
  30. 2026-08-07 16:24 UTCEPSS rescore
  31. 2026-08-06 13:44 UTCEPSS rescore
  32. 2026-08-05 19:15 UTCEPSS rescore
  33. 2026-08-05 19:15 UTCEPSS rescore
  34. 2026-08-04 15:07 UTCEPSS rescore
  35. 2026-08-04 10:35 UTCEPSS rescore
  36. 2026-08-03 10:34 UTCEPSS rescore
  37. 2026-08-02 09:29 UTCOSV refresh
  38. 2026-08-02 02:25 UTCEPSS rescore
  39. 2026-08-01 04:13 UTCEPSS rescore
  40. 2026-07-30 16:26 UTCEPSS rescore
  41. 2026-07-30 16:26 UTCEPSS rescore
  42. 2026-07-30 01:28 UTCEPSS rescore
  43. 2026-07-30 01:28 UTCEPSS rescore
  44. 2026-07-28 15:34 UTCEPSS rescore
  45. 2026-07-27 14:10 UTCEPSS rescore
  46. 2026-07-26 14:52 UTCEPSS rescore
  47. 2026-07-25 14:16 UTCEPSS rescore
  48. 2026-07-24 14:16 UTCEPSS rescore
  49. 2026-07-23 14:16 UTCEPSS rescore
  50. 2026-07-23 14:16 UTCEPSS rescore
  51. 2026-07-23 02:24 UTCEG score recompute
  52. 2026-07-22 23:10 UTCEG score recompute
  53. 2026-07-22 14:06 UTCEPSS rescore
  54. 2026-07-21 15:23 UTCEPSS rescore
  55. 2026-07-21 15:23 UTCEPSS rescore
  56. 2026-07-20 17:06 UTCEPSS rescore
  57. 2026-07-19 14:29 UTCEPSS rescore
  58. 2026-07-19 14:29 UTCEPSS rescore
  59. 2026-07-19 02:27 UTCEPSS rescore
  60. 2026-07-19 02:27 UTCEPSS rescore
  61. 2026-07-18 10:03 UTCEPSS rescore
  62. 2026-07-18 10:03 UTCEPSS rescore
  63. 2026-07-16 17:01 UTCEPSS rescore
  64. 2026-07-15 17:19 UTCOSV refresh
  65. 2026-07-15 16:56 UTCEPSS rescore
  66. 2026-07-15 16:56 UTCEPSS rescore
  67. 2026-07-15 01:58 UTCEPSS rescore
  68. 2026-07-15 01:58 UTCEPSS rescore
  69. 2026-07-13 22:28 UTCEPSS rescore
  70. 2026-07-13 22:28 UTCEPSS rescore
  71. 2026-07-13 06:11 UTCEPSS rescore
  72. 2026-07-13 06:11 UTCEPSS rescore
  73. 2026-07-12 05:45 UTCEPSS rescore
  74. 2026-07-11 08:26 UTCEPSS rescore
  75. 2026-07-11 08:25 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2023/CVE-2023-35156.yaml
    First seen Jan 1, 2023

    XWiki >= 6.0-rc-1 - Cross-Site Scripting

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-35156?
CVE-2023-35156 is a critical vulnerability published on June 23, 2023. XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the delete template to perform a XSS, e.g. by using URL such as: >…
When was CVE-2023-35156 disclosed?
CVE-2023-35156 was first published on June 23, 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-2023-35156 actively exploited?
CVE-2023-35156 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% probability of exploitation in the next 30 days (80th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-35156?
CVE-2023-35156 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2023-35156?
A fix for CVE-2023-35156 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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