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Public proof of conceptFix available

CVE-2020-5295

A public proof of concept exists; no exploitation attested.

  • Published2020-06-03
  • Fixed in1.0.466
  • WeaknessCWE-829 · CWE-98

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, an attacker can exploit this vulnerability to read local files of an October CMS server. The vulnerability is only exploitable by an authenticated backend user with the `cms.manage_assets` permission. Issue has been patched in Build 466 (v1.0.466).

Timeline

dates in UTC
  1. 2020-06-0322:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-5295?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-5295?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Octobercms october
BranchAffectedFixed in
1.0≥ 1.0.319, < 1.0.4661.0.466

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Octobercms october to 1.0.466

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-49045
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CNACVSS 3.14.8read 2026-10-23
  • NVDCVSS 3.14.9read 2026-10-23
  • NVDCVSS 2.04read 2026-10-23
  • CNAweakness (CWE)CWE-98read 2026-10-23
  • NVDweakness (CWE)CWE-829read 2026-10-23
  • FIRST EPSSEPSS score7.4 %2026-10-23
  • Exploit-DBdetectionread 2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Published
2020-06-03
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-5295?

In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, an attacker can exploit this vulnerability to read local files of an October CMS server. The vulnerability is only exploitable by an authenticated backend user with the `cms.manage_assets` permission. Issue has been patched in Build 466 (v1.0.466).

Is CVE-2020-5295 actively exploited?

Active exploitation of CVE-2020-5295 has not been confirmed. Its EPSS score was 7.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-5295?

CVE-2020-5295 has a CVSS v3 base score of 4.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

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