CVE-2022-46890: Weak access control in NexusPHP before 1.7.33 allows a remote authenticated user to edit any post in the forum

Q: How do I fix CVE-2022-46890?

nexusphp: upgrade to 1.7.33. Exact commands for each OS are on this page.

Q: Is CVE-2022-46890 being exploited?

CVE-2022-46890 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-46890 affect?

CVE-2022-46890 affects nexusphp. Severity is medium (CVSS 4.3). Weak access control in NexusPHP before 1.7.33 allows a remote authenticated user to edit any post in the forum (this is caused by a lack of checks performed by the /forums.php?action=post page).

Q: How urgent is CVE-2022-46890?

Priority 33/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2022-46890 is a medium-severity flaw (CVSS 4.3) affecting nexusphp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Weak access control in NexusPHP before 1.7.33 allows a remote authenticated user to edit any post in the forum (this is caused by a lack of checks performed by the /forums.php?action=post page).

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-284
Published	2023-01-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nexusphp

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

Am I affected?

Timeline

2023-01-19 19:15 UTCPublished CVE record published
2026-06-17 05:12 UTCUpdated Record last modified

nexusphp nexusphp UPGRADE

Affected: < 1.7.33

Fixed in: 1.7.33

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.7.33 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nexusphp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nexusphp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2022-46890?

nexusphp: upgrade to 1.7.33. Exact commands for each OS are on this page.

Is CVE-2022-46890 being exploited?

CVE-2022-46890 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-2022-46890 affect?

CVE-2022-46890 affects nexusphp. Severity is medium (CVSS 4.3). Weak access control in NexusPHP before 1.7.33 allows a remote authenticated user to edit any post in the forum (this is caused by a lack of checks performed by the /forums.php?action=post page).

How urgent is CVE-2022-46890?

Priority 33/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-46889 MEDIUM 5.4 UPGRADE A persistent cross-site scripting (XSS) vulnerability in NexusPHP before 1.7.33 allows remote authenticated at
CVE-2022-46888 MEDIUM 6.1 UPGRADE Multiple reflective cross-site scripting (XSS) vulnerabilities in NexusPHP before 1.7.33 allow remote attacker
CVE-2022-46887 CRITICAL 9.8 UPGRADE Multiple SQL injection vulnerabilities in NexusPHP before 1.7.33 allow remote attackers to execute arbitrary S

References

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