CVE-2026-43975

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 48% 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
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

FolderUploadsFileManager in Apache Wicket does not validate or sanitize the uploadFieldId parameter or the clientFileName before constructing file paths, allowing an unauthenticated attacker to write arbitrary files outside the intended upload directory or read files from arbitrary locations on the server.

This issue affects Apache Wicket: from 8.0.0 through 8.17.0, from 9.0.0 through 9.22.0, from 10.0.0 through 10.8.0.

Users are recommended to upgrade to version 10.9.0, which fixes the issue.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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
Severity65% × 45%
Exploitation1% × 40%
Automatability100% × 15%
EPSS PROB
1.0%
EPSS %ILE
61st
KEV
Not listed

Published

May 6, 2026

Last Modified

May 6, 2026

Advisory Details (3)

Auto-updated May 6, 2026
Patch available.
generic

oss-security - CVE-2026-43975: Apache Wicket: Possible malicious path traversal in FolderUploadsFileManager

http://www.openwall.com/lists/oss-security/2026/05/06/4
generic
https://lists.apache.org/thread/xp2jrdk6ppv1zcmxb4w1mk2lg1dw3hbr
generic

Sanitize file upload data by hayageek · Pull Request #1432 · apache/wicket · GitHub

https://github.com/apache/wicket/pull/1432

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.apache.wicket:wicket-core10.0.0 ... 10.8.0 (11 versions)
  • 8.0.0-M1 through 8.17.0: no fix on record
  • 9.0.0-M1 through 9.22.0: no fix on record
  • 10.0.0-M1 up to 10.9.0: fixed in 10.9.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 24× 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 159 total refreshes for this CVE.

  1. 2026-10-10 20:00 UTCEPSS rescore
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  62. 2026-07-19 14:31 UTCEPSS rescore
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  75. 2026-07-06 16:27 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-43975?
CVE-2026-43975 is a medium vulnerability published on May 6, 2026. FolderUploadsFileManager in Apache Wicket does not validate or sanitize the uploadFieldId parameter or the clientFileName before constructing file paths, allowing an unauthenticated attacker to write arbitrary files outside the intended upload directory or read files from arbitrary locations on the…
When was CVE-2026-43975 disclosed?
CVE-2026-43975 was first published on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43975 actively exploited?
CVE-2026-43975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (61st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-43975?
CVE-2026-43975 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-43975?
A fix for CVE-2026-43975 is available: update to the fixed version the vendor names in its advisory.

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