CVE-2026-35023: Wimi Teamwork On-Premises versions prior to 8.2.0 contain an insecure direct object reference vulnerability in

Q: How do I fix CVE-2026-35023?

wimi-teamwork: upgrade to 8.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-35023 being exploited?

CVE-2026-35023 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-2026-35023 affect?

CVE-2026-35023 affects wimi-teamwork. Severity is medium (CVSS 4.3). Wimi Teamwork On-Premises versions prior to 8.2.0 contain an insecure direct object reference vulnerability in the preview.php endpoint where the item_id parameter lacks proper authorization checks. Attackers can enumerate sequential item_i

Q: How urgent is CVE-2026-35023?

Priority 17/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2026-35023 is a medium-severity flaw (CVSS 4.3) affecting wimi-teamwork. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Wimi Teamwork On-Premises versions prior to 8.2.0 contain an insecure direct object reference vulnerability in the preview.php endpoint where the item_id parameter lacks proper authorization checks. Attackers can enumerate sequential item_id values to access and retrieve image previews from other users' private or group conversations, resulting in unauthorized disclosure of sensitive information.

Why this priority

No elevated risk signals yet

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	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-639
Published	2026-04-08
Last modified	2026-07-24

Publisher (CNA): VulnCheck · Vendor: wimi-teamwork

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-08 14:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

wimi-teamwork wimi-teamwork UPGRADE

Affected: < 8.2.0

Fixed in: 8.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wimi-teamwork || rpm -q wimi-teamwork || wimi-teamwork --version

2. UPGRADE to 8.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wimi-teamwork

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wimi-teamwork

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-2026-35023?

wimi-teamwork: upgrade to 8.2.0. Exact commands for each OS are on this page.

Is CVE-2026-35023 being exploited?

CVE-2026-35023 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-2026-35023 affect?

CVE-2026-35023 affects wimi-teamwork. Severity is medium (CVSS 4.3). Wimi Teamwork On-Premises versions prior to 8.2.0 contain an insecure direct object reference vulnerability in the preview.php endpoint where the item_id parameter lacks proper authorization checks. Attackers can enumerate sequential item_i

How urgent is CVE-2026-35023?

Priority 17/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

References

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