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Vulnerability record · CVE-2020-13484 · published 24 June 2020

CVE-2020-13484: Bitrix24 server-side request forgery (ssrf) vulnerability

Bitrix24 · Bitrix24

Bitrix24 through 20.0.975 allows SSRF via an intranet IP address in the services/main/ajax.php?action=attachUrlPreview url parameter, if the destination URL hosts an HTML document containing '<meta name="og:image" content="' followed by an intranet URL.

9.8 CVSS 3.1 Critical EPSS 2.0% · top 19.8% CWE-918 · Server-side request forgery (SSRF)
9.8CVSS 3.1 base score, v2 7.5
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Bitrix24 through 20.0.975 allows SSRF via an intranet IP address in the services/main/ajax.php?action=attachUrlPreview url parameter, if the destination URL hosts an HTML document containing '<meta name="og:image" content="' followed by an intranet URL.

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

Affected products

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

References

LinkTags
https://gist.github.com/mariuszpoplwski/f261a4bc06adde5c78760559db9d63bd ExploitThird Party Advisory
https://gist.github.com/mariuszpoplwski/f261a4bc06adde5c78760559db9d63bd ExploitThird Party Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-13484), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.