CVE-2025-46550

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 58% 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
Elevated
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 4.3Exploit: NoneExposed: 0

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

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the /?BazaR endpoint and idformulaire parameter are vulnerable to cross-site scripting. An attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over the user’s session. This vulnerability may also allow attackers to deface the website or embed malicious content. This issue has been patched in version 4.5.4.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

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
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
41.5%
KEV
Not listed

Published

April 29, 2025

Last Modified

May 9, 2025

References (3)

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
yeswiki/yeswiki4.2.3 ... v4.5.3 (23 versions)4.5.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 50× 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. 2026-07-23 02:56 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
  2. 2026-07-07 03:21 UTCOSV refresh
  3. 2026-07-06 16:27 UTCEPSS rescore
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  28. 2026-06-21 14:56 UTCEPSS rescore
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  30. 2026-06-21 01:59 UTCEPSS rescore
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  36. 2026-06-18 14:35 UTCOSV refresh
  37. 2026-06-17 17:52 UTCEPSS rescore
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  41. 2026-06-15 17:48 UTCEPSS rescore
  42. 2026-06-14 23:17 UTCEPSS rescore
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  44. 2026-06-12 23:11 UTCEPSS rescore
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  47. 2026-06-10 22:18 UTCEPSS rescore
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  49. 2026-06-10 13:22 UTCEPSS rescore
  50. 2026-06-08 14:16 UTCEPSS rescore
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  52. 2026-06-07 15:24 UTCEPSS rescore
  53. 2026-06-06 13:47 UTCEPSS rescore
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  68. 2026-05-31 00:16 UTCEPSS rescore
  69. 2026-05-30 06:43 UTCEG score recompute
  70. 2026-05-29 13:44 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/2025/CVE-2025-46550.yaml
    First seen Jan 1, 2025

    YesWiki < 4.5.4 - Cross-Site Scripting

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-46550?
CVE-2025-46550 is a medium vulnerability published on April 29, 2025. YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the /?BazaR endpoint and idformulaire parameter are vulnerable to cross-site scripting. An attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link.…
When was CVE-2025-46550 disclosed?
CVE-2025-46550 was first published in the National Vulnerability Database on April 29, 2025, with the most recent update on May 9, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-46550 actively exploited?
CVE-2025-46550 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-46550?
CVE-2025-46550 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2025-46550?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-46550, 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

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