Low severity · published Oct 26, 2026
CVE-2026-116215
MacCMS v10 through 2026.1000.4056 Race Condition via Card Redemption
New
3.1
CVSS
0.2%
EPSS
No
On KEV
Description
MacCMS v10 through 2026.1000.4056 contains a race condition vulnerability in Card::useData() that allows authenticated members to redeem one recharge card multiple times via the user/buy endpoint. Attackers can send many concurrent flag=card requests that pass the non-locking card read before it is marked used, inflating user_points to buy VIP upgrades and paid content.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
maccms10 · maccmspro
through 2021.1000.2000 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116215
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116215
github.com
https://github.com/maccmspro/maccms10
github.com
https://github.com/maccmspro/maccms10/blob/7f388ee0008faf5b01e5df7bf5e5a6ff4bbe13e8/application/common/model/Card.php#L123-L160
github.com
https://github.com/maccmspro/maccms10/issues/30
www.vulncheck.com
https://www.vulncheck.com/advisories/maccms-v10-through-2026.1000.4056-race-condition-via-card-redemption
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