Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection
Mirasvit Cache Warmer (Full Page Cache Warmer for Magento 2) versions before 1.11.12 are affected. The fix is in version 1.11.12.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 1.11.12
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Mirasvit Full Page Cache Warmer for Magento 2 is affected. An unauthenticated attacker could send a specially crafted cookie to the server, causing it to run arbitrary code and potentially take full control of the affected system.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie. Attackers can exploit the unrestricted call to PHP's native unserialize() function combined with gadget chains available in Magento and its dependencies to execute arbitrary code on the server.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- Record last updated
- CISA remediation deadline
Due date for US federal agencies to patch
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Mirasvit Full Page Cache Warmer for Magento 2
fixed in 1.11.12
References 3
Questions about CVE-2026-45247
What does this mean?
The bug is a PHP object injection flaw in unserialize() that can be combined with gadget chains. The advisory says it lets an unauthenticated attacker achieve remote code execution on the server.Source: sansec.io, vulncheck.com
Am I affected, and how do I check?
All Mirasvit Cache Warmer versions before 1.11.12 (Full Page Cache Warmer for Magento 2) are listed as vulnerable. To check, compare the installed Cache Warmer module version against 1.11.12.Source: sansec.io, vulncheck.com
What should I do about it?
Upgrade Mirasvit Cache Warmer to 1.11.12 or later.Source: sansec.io, vulncheck.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-06-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data