CVE-2018-17827: HisiPHP 1.0.8 allows remote attackers to execute arbitrary PHP code by editing a plugin's name to contain that

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HIGH 7.2DOWNGRADE

CVE-2018-17827 is a high-severity flaw (CVSS 7.2) affecting hisiphp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HisiPHP 1.0.8 allows remote attackers to execute arbitrary PHP code by editing a plugin's name to contain that code. This name is then injected into app/admin/model/AdminPlugins.php.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-94
Published	2018-10-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hisiphp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-10-01 08:29 UTCPublished CVE record published
2026-06-17 01:46 UTCUpdated Record last modified

hisiphp hisiphp DOWNGRADE

Affected: 1.0.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.8

1. Check installed version

apt-cache policy hisiphp || rpm -q hisiphp || hisiphp --version

2. No fixed release: DOWNGRADE to a release before 1.0.8 (Debian / Ubuntu)

apt-cache madison hisiphp sudo apt install hisiphp=<VERSION_BEFORE_1.0.8> sudo apt-mark hold hisiphp

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hisiphp sudo dnf downgrade hisiphp-<VERSION_BEFORE_1.0.8> sudo dnf versionlock add hisiphp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-17827?

hisiphp: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-17827 being exploited?

CVE-2018-17827 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-17827 affect?

CVE-2018-17827 affects hisiphp. Severity is high (CVSS 7.2). HisiPHP 1.0.8 allows remote attackers to execute arbitrary PHP code by editing a plugin's name to contain that code. This name is then injected into app/admin/model/AdminPlugins.php.

How urgent is CVE-2018-17827?

Priority 48/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-33445 CRITICAL 9.8 DOWNGRADE An issue in hisiphp v2.0.111 allows a remote attacker to execute arbitrary code via a crafted script to the Sy
CVE-2020-28062 HIGH 7.2 DOWNGRADE An Access Control vulnerability exists in HisiPHP 2.0.11 via special packets that are constructed in $files =
CVE-2020-21130 MEDIUM 6.1 DOWNGRADE Cross Site Scripting (XSS) vulnerability in HisiPHP 2.0.8 via the group name in addgroup.html.
CVE-2019-1010193 MEDIUM 6.1 DOWNGRADE hisiphp 1.0.8 is affected by: Cross Site Scripting (XSS).
CVE-2018-17826 HIGH 8.8 DOWNGRADE HisiPHP 1.0.8 allows CSRF via admin.php/admin/user/adduser.html to add an administrator account

References

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