CVE-2018-17826
CVE-2018-17826 is a high-severity vulnerability in Hisiphp with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 0% (39th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-352
- Affected product: Hisiphp
- Published:
- Last modified:
Description
HisiPHP 1.0.8 allows CSRF via admin.php/admin/user/adduser.html to add an administrator account. The attacker can then use that account to execute arbitrary PHP code by leveraging app/common/model/AdminAnnex.php to add .php to the default list of allowable file-upload types (.jpg, .png, .gif, .jpeg, and .ico).
Frequently asked questions
- What is CVE-2018-17826?
- HisiPHP 1.0.8 allows CSRF via admin.php/admin/user/adduser.html to add an administrator account. The attacker can then use that account to execute arbitrary PHP code by leveraging app/common/model/AdminAnnex.php to add .php to the default list of allowable file-upload types (.jpg, .png, .gif, .jpeg, and .ico).
- How severe is CVE-2018-17826?
- CVE-2018-17826 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-17826 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-17826?
- CVE-2018-17826 affects Hisiphp. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-17826?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-17826 published?
- CVE-2018-17826 was published on 2018-10-01 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hisiphp:hisiphp:1.0.8:*:*:*:*:*:*:*
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