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Vulnerability record · CVE-2020-5842 · published 7 January 2020

CVE-2020-5842: Codologic codoforum cross-site scripting vulnerability

Codologic · Codoforum

Codoforum 4.8.3 allows XSS in the user registration page: via the username field to the index.php?u=/user/register URI. The payload is, for example, executed on the admin/index.php?page=users/manage page.

6.1 CVSS 3.1 Medium EPSS 1.8% · top 22.2% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Codoforum 4.8.3 allows XSS in the user registration page: via the username field to the index.php?u=/user/register URI. The payload is, for example, executed on the admin/index.php?page=users/manage page.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://medium.com/%40prasanthc41m/cve-2020-5842-stored-xss-vulnerability-in-codoforum-4-8-3-b2e1133c6a91
https://www.exploit-db.com/exploits/47876 ExploitThird Party AdvisoryVDB Entry
https://medium.com/%40prasanthc41m/cve-2020-5842-stored-xss-vulnerability-in-codoforum-4-8-3-b2e1133c6a91
https://www.exploit-db.com/exploits/47876 ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-13873Codologic codoforum sql injection vulnerabilityA SQL Injection vulnerability in get_topic_info() in sys/CODOF/Forum/Topic.php in Codoforum before 4.9 allows remote attackers (pre-authentication) t…EPSS 4.9%7.2CVE-2020-22539Codologic codoforum unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the Add Category function of Codoforum v4.9 allows attackers to execute arbitrary code via uploading a craf…EPSS 0.86%7.2CVE-2022-31854Codologic codoforum unrestricted file upload vulnerabilityCodoforum v5.1 was discovered to contain an arbitrary file upload vulnerability via the logo change option in the admin panel.EPSS 32%6.1CVE-2020-7051Codologic codoforum cross-site scripting vulnerabilityCodologic Codoforum through 4.8.4 allows stored XSS in the login area. This is relevant in conjunction with CVE-2020-5842 because session cookies lac…EPSS 0.76%5.4CVE-2020-22540Codologic codoforum cross-site scripting vulnerabilityStored Cross-Site Scripting (XSS) vulnerability in Codoforum v4.9, allows attackers to execute arbitrary code and obtain sensitive information via cr…EPSS 0.43%5.4CVE-2020-25875Codologic codoforum cross-site scripting vulnerabilityA stored cross site scripting (XSS) vulnerability in the 'Smileys' feature of Codoforum v5.0.2 allows authenticated attackers to execute arbitrary we…EPSS 0.51%5.4CVE-2020-25876Codologic codoforum cross-site scripting vulnerabilityA stored cross site scripting (XSS) vulnerability in the 'Pages' feature of Codoforum v5.0.2 allows authenticated attackers to execute arbitrary web …EPSS 0.45%5.4CVE-2020-25879Codologic codoforum cross-site scripting vulnerabilityA stored cross site scripting (XSS) vulnerability in the 'Manage Users' feature of Codoforum v5.0.2 allows authenticated attackers to execute arbitra…EPSS 0.45%

Source: NIST National Vulnerability Database (record CVE-2020-5842), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.