CVE-2026-53529

MEDIUMPre-NVD 4.84.8
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 4.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (31st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
4.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

LeafWiki is a self-hosted wiki. Prior to version 0.10.2, page titles returned by the search API could be rendered as raw HTML in the frontend. A user with editor or administrator permissions could create or modify a page title containing an HTML/JavaScript payload. When another user searched for a matching term, the payload could execute in the victim’s browser. The impact depends on deployment configuration. With --public-access enabled, unauthenticated visitors could be affected. In authenticated-only deployments, the issue could be used for cross-user XSS against logged-in users who can access search results. The issue has been fixed in version 0.10.2 by ensuring that author-controlled page titles in search results are not interpreted as raw HTML by the browser while preserving search result highlighting.

CVSS v3
4.8
EG Score
4.8MEDIUMmedium confidence
EG Risk
22
EG Risk 22/100

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 (value × EchelonGraph’s weight)
Severity48% × 45%
The EG Score, 4.8 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

August 21, 2026

Last Modified

October 12, 2026

Advisory Details (1)

Auto-updated Aug 21, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

Stored XSS via search-result title (highlight() returns raw title into dangerouslySetInnerHTML) · Advisory · perber/leafwiki · GitHub

https://github.com/perber/leafwiki/security/advisories/GHSA-j344-qxqm-wg64

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 51× 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.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-12 15:57 UTCEG score recompute
  4. 2026-10-11 19:40 UTCEG score recompute
  5. 2026-10-11 16:55 UTCEG score recompute
  6. 2026-10-11 14:19 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-09 05:38 UTCEG score recompute
  11. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-10-08 04:49 UTCEG score recompute
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-10-07 01:14 UTCEG score recompute
  15. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-10-06 03:03 UTCEG score recompute
  17. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  18. 2026-10-05 01:31 UTCEG score recompute
  19. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  20. 2026-10-04 03:12 UTCEG score recompute
  21. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  22. 2026-10-03 05:05 UTCEG score recompute
  23. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  24. 2026-10-02 06:45 UTCEG score recompute
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 65 more
  1. 2026-10-01 05:54 UTCEG score recompute
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-09-30 07:47 UTCEG score recompute
  4. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-09-28 22:39 UTCEG score recompute
  6. 2026-09-28 00:30 UTCEG score recompute
  7. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-09-27 02:23 UTCEG score recompute
  9. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-09-24 19:00 UTCEG score recompute
  11. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-09-23 20:01 UTCEG score recompute
  13. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  14. 2026-09-22 20:31 UTCEG score recompute
  15. 2026-09-21 22:23 UTCEG score recompute
  16. 2026-09-21 00:15 UTCEG score recompute
  17. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  18. 2026-09-20 02:07 UTCEG score recompute
  19. 2026-09-19 03:59 UTCEG score recompute
  20. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  21. 2026-09-18 05:51 UTCEG score recompute
  22. 2026-09-17 07:43 UTCEG score recompute
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  24. 2026-09-16 09:34 UTCEG score recompute
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  26. 2026-09-15 10:14 UTCEG score recompute
  27. 2026-09-14 11:56 UTCEG score recompute
  28. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  29. 2026-09-12 15:42 UTCEG score recompute
  30. 2026-09-11 17:35 UTCEG score recompute
  31. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  32. 2026-09-10 19:27 UTCEG score recompute
  33. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  34. 2026-09-09 01:44 UTCEG score recompute
  35. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  36. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  37. 2026-09-06 15:09 UTCEG score recompute
  38. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  39. 2026-09-05 16:57 UTCEG score recompute
  40. 2026-09-04 18:47 UTCEG score recompute
  41. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  42. 2026-09-02 22:29 UTCEG score recompute
  43. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  44. 2026-09-02 00:22 UTCEG score recompute
  45. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  46. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  47. 2026-08-31 03:59 UTCEG score recompute
  48. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  49. 2026-08-30 05:53 UTCEG score recompute
  50. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  51. 2026-08-29 07:43 UTCEG score recompute
  52. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  53. 2026-08-28 09:33 UTCEG score recompute
  54. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  55. 2026-08-27 11:21 UTCEG score recompute
  56. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  57. 2026-08-25 15:03 UTCEG score recompute
  58. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  59. 2026-08-24 16:56 UTCEG score recompute
  60. 2026-08-23 18:39 UTCEG score recompute
  61. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  62. 2026-08-21 22:25 UTCEG score recompute
  63. 2026-08-21 21:51 UTCEG score recompute
  64. 2026-08-21 21:40 UTCEG score recomputeFirst assessed: 4.8 MEDIUM
  65. 2026-08-21 21:39 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-53529?
CVE-2026-53529 is a medium-severity vulnerability; its CVE record was published on August 21, 2026. LeafWiki is a self-hosted wiki. Prior to version 0.10.2, page titles returned by the search API could be rendered as raw HTML in the frontend. A user with editor or administrator permissions could create or modify a page title containing an HTML/JavaScript payload. When another user searched for a…
When was the CVE record for CVE-2026-53529 published?
The CVE record for CVE-2026-53529 was published on August 21, 2026. 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 October 12, 2026; the record at its source may have been updated since.
Is CVE-2026-53529 actively exploited?
CVE-2026-53529 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53529?
CVE-2026-53529 has a CVSS base score of 4.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53529?
The CVE record for CVE-2026-53529 names the fix: "The issue has been fixed in version 0.10.2 by ensuring that author-controlled page titles in search results are not interpreted as raw HTML by the browser while preserving search result highlighting."

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