Vulnerability · Published Jun 20, 2025 · Assigned by VulnCheck
CVE-2025-25034SugarCRM PHP Deserialization RCE
Critical 9.3
In plain English
A critical-severity unsafe deserialization in SugarCRM from SugarCRM. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 5.0% (higher than 92% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, Nuclei.
Official description
A PHP object injection vulnerability exists in SugarCRM versions prior to 6.5.24, 6.7.13, 7.5.2.5, 7.6.2.2, and 7.7.1.0 due to improper validation of PHP serialized input in the SugarRestSerialize.php script. The vulnerable code fails to sanitize the rest_data parameter before passing it to the unserialize() function. This allows an unauthenticated attacker to submit crafted serialized data containing malicious object declarations, resulting in arbitrary code execution within the application context. Although SugarCRM released a prior fix in advisory sugarcrm-sa-2016-001, the patch was incomplete and failed to address some vectors. Exploitation evidence was observed by the Shadowserver Foundation on 2024-09-13 UTC.
Affected products (as reported)
Weakness: CWE-502 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://web.archive.org/web/20160725194502/http://www.sugarcrm.com/security/sugarcrm-sa-2016-008 vendor-advisory
- https://web.archive.org/web/20160508053502/http://www.sugarcrm.com/security/sugarcrm-sa-2016-001 vendor-advisory
- https://karmainsecurity.com/KIS-2016-07 technical-description, third-party-advisory
- https://www.exploit-db.com/exploits/40344 exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/sugarcrm_rest_unserialize_exec.rb exploit
- https://www.sugarcrm.com/crm/ product
- https://vulncheck.com/advisories/sugarcrm-php-deserialization-rce third-party-advisory