CVE-2023-43876

MEDIUMNVD 5.45.4—Elevated

5.4

A Cross-Site Scripting (XSS) vulnerability in installation of October v.3.4.16 allows an attacker to execute arbitrary web scripts via a crafted payload injected into the dbhost field.

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 49.7%
KEV: Not listed

Published

September 28, 2023

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/sromanhu/October-CMS-Reflected-XSS---Installation/blob/main/README.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/sromanhu/October-CMS-Reflected-XSS---Installation/blob/main/README.md

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
composer	october/cms	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

CWE-79Cross-site Scripting (XSS)

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.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 16:53 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-43876?

CVE-2023-43876 is a medium vulnerability published on September 28, 2023. A Cross-Site Scripting (XSS) vulnerability in installation of October v.3.4.16 allows an attacker to execute arbitrary web scripts via a crafted payload injected into the dbhost field.

When was CVE-2023-43876 disclosed?

CVE-2023-43876 was first published in the National Vulnerability Database on September 28, 2023, 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-2023-43876 actively exploited?

CVE-2023-43876 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-43876?

CVE-2023-43876 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2023-43876?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43876, 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-2023-43876

Published

Last Modified

References (2)

Patch Availability(1)

Weakness Classification(1)

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-43876?

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CVE-2023-43876

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🔄 Last Modified

🔗 References (2)

Patch Availability(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-43876?

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