CVE-2017-1000423

CRITICALNVD 9.89.8—

9.8

b2evolution version 6.6.0 - 6.8.10 is vulnerable to input validation (backslash and single quote escape) in basic install functionality resulting in unauthenticated attacker gaining PHP code execution on the victim's setup.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 82.7%
KEV: Not listed

Published

January 2, 2018

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated May 23, 2026

No patch confirmed yet.

generic

Format install params · b2evolution/b2evolution@b899d65 · GitHub

https://github.com/b2evolution/b2evolution/commit/b899d654d931f3bf3cfbbdd71e0d1a0f3a16d04c

generic

Format install params · b2evolution/b2evolution@0096a3e · GitHub

https://github.com/b2evolution/b2evolution/commit/0096a3ebc85f6aadbda2c4427cd092a538b161d2

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-07 15:22 UTCepss_batch
2026-06-07 15:22 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-06 13:45 UTCepss_batch
2026-06-05 22:44 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 12:58 UTCEG score recompute
2026-05-28 12:58 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2017-1000423?

CVE-2017-1000423 is a critical vulnerability published on January 2, 2018. b2evolution version 6.6.0 - 6.8.10 is vulnerable to input validation (backslash and single quote escape) in basic install functionality resulting in unauthenticated attacker gaining PHP code execution on the victim's setup.

When was CVE-2017-1000423 disclosed?

CVE-2017-1000423 was first published in the National Vulnerability Database on January 2, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2017-1000423 actively exploited?

CVE-2017-1000423 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 82.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2017-1000423?

CVE-2017-1000423 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2017-1000423?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-1000423, 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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CVE-2017-1000423

📅 Published

🔄 Last Modified

📋 Advisory Details (2)