Race condition in MacCMS lets members reuse recharge cards
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
maccmspro maccms10 from 0 through 2021.1000.2000 and magicblack maccms10 from 0 through 2026.1000.4056 are affected. Card::useData() reads a recharge card without locking it, so concurrent requests can use the same card more than once (CWE-362). An authenticated member can redeem one recharge card multiple times, inflating user points to buy VIP upgrades and paid content.
Written with Claude Haiku 5.5 from the sources below · 2026-10-31
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| maccmspro | maccms10 | up to 2021.1000.2000 | — | No fix listed | CNA |
| magicblack | maccms10 | up to 2026.1000.4056 | — | No fix listed | CNA |
- maccms10 Vendormaccmspro Affected up to 2021.1000.2000 Fixed in — No fix listed CNA
- maccms10 Vendormagicblack Affected up to 2026.1000.4056 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for maccms10.
Written with Claude Haiku 5.5 from the sources below · 2026-10-31
Timeline
- 2026-10-26 Threatist record created from CVE-2026-116215
- 2026-10-27 Alias added: GHSA-m463-2mww-7vjr
- 2026-10-31 CISA SSVC decision points changed
References
More maccmspro vulnerabilities
- TI-2026-80388 Password recovery flaw in MacCMS v10 allows account takeover CVSS 4.0CRITICAL 9.3
- TI-2026-80390 Mass assignment in MacCMS lets anonymous comments impersonate users CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-116215 · CVE Program
- CVE-2026-116215 · NVD
- FIRST EPSS
- GHSA-m463-2mww-7vjr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences