HOME VULNERABILITIESCVE-2020-5298

MEDIUM

CVE-2020-5298

CWE-87Published: June 3, 2020· Updated: Jun 17, 2026

4.8

CVSS v3.1

Official Description

In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, a user with the ability to use the import functionality of the `ImportExportController` behavior can be socially engineered by an attacker to upload a maliciously crafted CSV file which could result in a reflected XSS attack on the user in question Issue has been patched in Build 466 (v1.0.466).

Technical Analysis

CVE-2020-5298 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.High

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected Vendors & Products

octobercms1 product(s)

october

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/octobercms/october/commit/cd0b6a791f995d86071a024464c1702efc50f46c

PATCHhttps://github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448c

PATCHhttps://github.com/octobercms/october/commit/cd0b6a791f995d86071a024464c1702efc50f46c

PATCHhttps://github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448c

ADVISORYhttp://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.html

ADVISORYhttp://seclists.org/fulldisclosure/2020/Aug/2

ADVISORYhttp://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.html

ADVISORYhttp://seclists.org/fulldisclosure/2020/Aug/2

All References (8)

→

http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.htmlExploit · Third Party Advisory · VDB Entry

→

http://seclists.org/fulldisclosure/2020/Aug/2Exploit · Mailing List · Third Party Advisory

→

https://github.com/octobercms/october/commit/cd0b6a791f995d86071a024464c1702efc50f46cPatch · Third Party Advisory

→

https://github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448cPatch · Third Party Advisory

→

http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.htmlExploit · Third Party Advisory · VDB Entry

→

http://seclists.org/fulldisclosure/2020/Aug/2Exploit · Mailing List · Third Party Advisory

→

https://github.com/octobercms/october/commit/cd0b6a791f995d86071a024464c1702efc50f46cPatch · Third Party Advisory

→

https://github.com/octobercms/october/security/advisories/GHSA-gg6x-xx78-448cPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2020-5298

CVSS Score4.8 / 10

SeverityMEDIUM

WeaknessCWE-87

CISA KEVNo

Affected1 vendor(s)

PublishedJun 3, 2020

Related CVEs (CWE-87)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2020-5298 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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