CVE-2023-45134

CRITICALNVD 9.09.0
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 1.8% (78th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
9.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.8%CVSS: 9.0Exploit: No code on recordExposed 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. org.xwiki.platform:xwiki-platform-web starting in version 3.1-milestone-1 and prior to 13.4-rc-1, org.xwiki.platform:xwiki-platform-web-templates prior to versions 14.10.2 and 15.5-rc-1, and org.xwiki.platform:xwiki-web-standard starting in version 2.4-milestone-2 and prior to version 3.1-milestone-1 are vulnerable to cross-site scripting. An attacker can create a template provider on any document that is part of the wiki (could be the attacker's user profile) that contains malicious code. This code is executed when this template provider is selected during document creation which can be triggered by sending the user to a URL. For the attacker, the only requirement is to have an account as by default the own user profile is editable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in org.xwiki.platform:xwiki-platform-web 13.4-rc-1, org.xwiki.platform:xwiki-platform-web-templates 14.10.2 and 15.5-rc-1, and org.xwiki.platform:xwiki-web-standard 3.1-milestone-1 by adding the appropriate escaping. The vulnerable template file createinline.vm is part of XWiki's WAR and can be patched by manually applying the changes from the fix.

CVSS v3
9.0
EG Score
9.0CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity90% × 45%
Impact severity (EG Severity): CVSS 9.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
1.8%
EPSS %ILE
78th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is its impact severity (EG Severity), not escalated.

EG Severity
9.0 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
1.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 25, 2023

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jul 26, 2026
Patch available. Sources: github_commit, github.
Web page

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https://jira.xwiki.org/browse/XWIKI-20962
GitHub advisoryMentions a patch (unverified)

XSS from account in the create page form via template provider · Advisory · xwiki/xwiki-platform · GitHub

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gr82-8fj2-ggc3
GitHub commit Patch Available

commit ba56fda17515 (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-17.4.8 (contains commit ba56fda17515)

https://github.com/xwiki/xwiki-platform/commit/ba56fda175156dd35035f2b8c86cbd8ef1f90c2e

Affected Packages

(3 across 1 ecosystem)
Maven(3)
PackageVulnerable rangeFix by version rangeDependents
org.xwiki.platform:xwiki-platform-web—
  • 3.1-milestone-1 up to 13.4-rc-1: fixed in 13.4-rc-1
—
org.xwiki.platform:xwiki-platform-web-templates—
  • every version up to 14.10.12: fixed in 14.10.12
  • 15.0-rc-1 up to 15.5-rc-1: fixed in 15.5-rc-1
—
org.xwiki.platform:xwiki-web-standard—
  • 2.4-milestone-2 up to 3.1-milestone-1: fixed in 3.1-milestone-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 41× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 88 of 209 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 12 repeat rows among the latest 100 are merged into the row they repeat. The 121 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 13:15 UTCEG score recompute
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  3. 2026-10-22 11:42 UTCEG score recompute
  4. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  5. 2026-10-21 10:10 UTCEG score recompute
  6. 2026-10-20 16:30 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  7. 2026-10-20 08:38 UTCEG score recompute
  8. 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  9. 2026-10-19 07:08 UTCEG score recompute
  10. 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  11. 2026-10-18 05:36 UTCEG score recompute
  12. 2026-10-17 16:30 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  13. 2026-10-17 04:06 UTCEG score recompute
  14. 2026-10-16 16:36 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  15. 2026-10-16 02:35 UTCEG score recompute
  16. 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  17. 2026-10-14 22:36 UTCEG score recompute
  18. 2026-10-14 16:30 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  19. 2026-10-13 18:12 UTCEG score recompute
  20. 2026-10-13 16:30 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  21. 2026-10-12 16:39 UTCEG score recompute
  22. 2026-10-12 16:31 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  23. 2026-10-11 21:44 UTCEG score recompute
  24. 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  25. 2026-10-10 19:57 UTCEPSS rescoreEPSS 1.8% · 78th percentile
Show 63 more
  1. 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  2. 2026-10-08 17:06 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  3. 2026-10-07 23:46 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  4. 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  5. 2026-10-05 17:41 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  6. 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  7. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  8. 2026-10-01 19:48 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  9. 2026-09-30 16:31 UTCEG score recompute
  10. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  11. 2026-09-29 15:17 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  12. 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  13. 2026-09-27 13:42 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  14. 2026-09-26 15:56 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  15. 2026-09-26 00:22 UTCEPSS rescoreEPSS 1.8% · 78th percentile
  16. 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  17. 2026-09-23 13:46 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  18. 2026-09-22 18:38 UTCOSV refresh
  19. 2026-09-18 19:25 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  20. 2026-09-17 19:25 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  21. 2026-09-16 14:06 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  22. 2026-09-16 05:11 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  23. 2026-09-12 14:58 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  24. 2026-09-11 14:50 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  25. 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  26. 2026-09-08 21:58 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  27. 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  28. 2026-09-06 13:45 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  29. 2026-09-05 15:26 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  30. 2026-09-04 13:58 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  31. 2026-09-04 05:04 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  32. 2026-09-03 14:59 UTCOSV refresh
  33. 2026-09-02 14:09 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  34. 2026-09-01 13:51 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  35. 2026-08-30 19:15 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  36. 2026-08-30 01:20 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  37. 2026-08-28 21:39 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  38. 2026-08-27 14:23 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  39. 2026-08-26 14:43 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  40. 2026-08-25 13:46 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  41. 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  42. 2026-08-21 23:47 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  43. 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  44. 2026-08-19 17:02 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  45. 2026-08-18 13:46 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  46. 2026-08-17 13:45 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  47. 2026-08-17 04:23 UTCOSV refresh
  48. 2026-08-16 14:54 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  49. 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  50. 2026-08-15 01:28 UTCEPSS rescoreEPSS 1.8% · 77th percentile
  51. 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  52. 2026-08-12 13:48 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  53. 2026-08-11 13:39 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  54. 2026-08-09 13:44 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  55. 2026-08-08 16:35 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  56. 2026-08-07 16:25 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  57. 2026-08-06 13:45 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  58. 2026-08-05 19:15 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  59. 2026-08-04 15:07 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  60. 2026-08-03 10:34 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  61. 2026-08-02 02:25 UTCEPSS rescoreEPSS 1.8% · 76th percentile
  62. 2026-08-01 23:06 UTCOSV refresh
  63. 2026-08-01 04:14 UTCEPSS rescoreEPSS 1.8% · 76th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-45134?
CVE-2023-45134 is a critical-severity vulnerability; its CVE record was published on October 25, 2023. XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. org.xwiki.platform:xwiki-platform-web starting in version 3.1-milestone-1 and prior to 13.4-rc-1, org.xwiki.platform:xwiki-platform-web-templates prior to versions 14.10.2 and 15.5-rc-1, and…
When was the CVE record for CVE-2023-45134 published?
The CVE record for CVE-2023-45134 was published on October 25, 2023. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2023-45134 actively exploited?
CVE-2023-45134 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.8% probability of exploitation in the next 30 days (78th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-45134?
CVE-2023-45134 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2023-45134?
A fix for CVE-2023-45134 is available: update to the fixed version the vendor names in its advisory.

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