CVE-2025-70886 json
An issue in halo v.2.22.4 and before allows a remote attacker to cause a denial of service via a crafted payload to the public comment subm…
published 2026-02-12 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-207234
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
An issue in halo v.2.22.4 and before allows a remote attacker to cause a denial of service via a crafted payload to the public comment submission endpoint
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/halo-dev/halo/issues/7890 referenced PoC, tagged "exploit" by a source, unverified
- howiehz.top https://howiehz.top/archives/halo-comment-payload-tweaker referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/HowieHz/CVE-2025-70886 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/halo-dev/halo/issues/7890
exploit, issue-tracking, vendor-advisory
-
howiehz.top
/archives/halo-comment-payload-tweaker
exploit, third-party-advisory
-
github.com
/HowieHz/CVE-2025-70886
exploit, third-party-advisory
Sources
- CVE List CVE-2025-70886
- NVD CVE-2025-70886
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.