CVE-2026-39850

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% 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
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

Yii 2 is a PHP application framework. Versions 2.0.54 and prior contain flawed logic in the core view rendering method View::renderPhpFile() that leads to Local File Inclusion. The function calls extract($_params_, EXTR_OVERWRITE) before the require statement that loads the view file. As a result, a caller-controlled _file_ key in the $params array overwrites the internal local variable specifying which file to include, potentially enabling RCE if an attacker can write PHP files through a separate primitive, as well as information disclosure. This issue has been fixed in version 2.0.55.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

May 20, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 9, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Local file inclusion via view parameter name collision · Advisory · yiisoft/yii2 · GitHub

https://github.com/yiisoft/yii2/security/advisories/GHSA-5vpg-rj7q-qpw2
github_commit Patch Available

commit 109878b491db (yiisoft/yii2)

Patch available: yiisoft/yii2 2.0.55 (contains commit 109878b491db)

https://github.com/yiisoft/yii2/commit/109878b491dbffa541032bc99fb5e26d12cd0375

Vendor Advisories for CVE-2026-39850(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
yiisoft/yii22.0.0 ... 2.0.9 (79 versions)2.0.55—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 31× 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 165 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
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  1. 2026-08-23 16:52 UTCEG score recompute
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  10. 2026-08-16 16:52 UTCEG score recompute
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  60. 2026-07-17 22:59 UTCOSV refresh
  61. 2026-07-16 17:03 UTCEPSS rescore
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  75. 2026-07-06 02:23 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-39850?
CVE-2026-39850 is a high vulnerability published on May 20, 2026. Yii 2 is a PHP application framework. Versions 2.0.54 and prior contain flawed logic in the core view rendering method View::renderPhpFile() that leads to Local File Inclusion. The function calls extract($params, EXTROVERWRITE) before the require statement that loads the view file. As a result, a…
When was CVE-2026-39850 disclosed?
CVE-2026-39850 was first published in the National Vulnerability Database on May 20, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39850 actively exploited?
CVE-2026-39850 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.2% of all scored CVEs.
What is the CVSS score of CVE-2026-39850?
CVE-2026-39850 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-39850?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39850, 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.

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