CVE-2023-40034

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 50% 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
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.1Exploit: NoneExposed: 0

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

Woodpecker is a community fork of the Drone CI system. In affected versions an attacker can post malformed webhook data witch lead to an update of the repository data that can e.g. allow the takeover of an repo. This is only critical if the CI is configured for public usage and connected to a forge witch is also in public usage. This issue has been addressed in version 1.0.2. Users are advised to upgrade. Users unable to upgrade should secure the CI system by making it inaccessible to untrusted entities, for example, by placing it behind a firewall.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
49.9%
KEV
Not listed

Published

August 16, 2023

Last Modified

November 21, 2024

References (8)

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/woodpecker-ci/woodpecker—1.0.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 49× 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 110 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:25 UTCEG score recompute
  4. 2026-07-22 23:12 UTCEG score recompute
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  17. 2026-07-15 12:19 UTCOSV refresh
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  1. 2026-07-11 08:26 UTCEPSS rescore
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  18. 2026-06-27 12:34 UTCOSV refresh
  19. 2026-06-27 03:07 UTCEPSS rescore
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  49. 2026-06-10 22:17 UTCEPSS rescore
  50. 2026-06-10 13:21 UTCEPSS rescore
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  52. 2026-06-09 23:17 UTCOSV refresh
  53. 2026-06-08 14:16 UTCEPSS rescore
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  55. 2026-06-07 15:23 UTCEPSS rescore
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  74. 2026-05-29 13:43 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2023-40034?
CVE-2023-40034 is a high vulnerability published on August 16, 2023. Woodpecker is a community fork of the Drone CI system. In affected versions an attacker can post malformed webhook data witch lead to an update of the repository data that can e.g. allow the takeover of an repo. This is only critical if the CI is configured for public usage and connected to a forge…
When was CVE-2023-40034 disclosed?
CVE-2023-40034 was first published in the National Vulnerability Database on August 16, 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-2023-40034 actively exploited?
CVE-2023-40034 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-40034?
CVE-2023-40034 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2023-40034?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40034, 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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