CVE-2023-27377: Missing authentication in the StudentPopupDetails_EmergencyContactDetails method in IDAttend’s IDWeb ap

Q: How do I fix CVE-2023-27377?

idweb: upgrade to newer than 3.1.052. Exact commands for each OS are on this page.

Q: Is CVE-2023-27377 being exploited?

CVE-2023-27377 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-2023-27377 affect?

CVE-2023-27377 affects idweb. Severity is high (CVSS 7.5). Missing authentication in the StudentPopupDetails_EmergencyContactDetails method in IDAttend’s IDWeb application 3.1.052 and earlier allows extraction of sensitive student data by unauthenticated attackers.

Q: How urgent is CVE-2023-27377?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2023-27377 is a high-severity flaw (CVSS 7.5) affecting idweb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing authentication in the StudentPopupDetails_EmergencyContactDetails method in IDAttend’s IDWeb application 3.1.052 and earlier allows extraction of sensitive student data by unauthenticated attackers.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-306, CWE-287
Published	2023-10-25
Last modified	2026-06-17

Publisher (CNA): The Missing Link Australia (TML) · Vendor: idattend

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

Am I affected?

Timeline

2023-10-25 18:17 UTCPublished CVE record published
2026-06-17 05:44 UTCUpdated Record last modified

idattend idweb UPGRADE

Affected: <= 3.1.052

Fixed in: newer than 3.1.052

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.1.052 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade idweb

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-2023-27377?

idweb: upgrade to newer than 3.1.052. Exact commands for each OS are on this page.

Is CVE-2023-27377 being exploited?

CVE-2023-27377 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-2023-27377 affect?

CVE-2023-27377 affects idweb. Severity is high (CVSS 7.5). Missing authentication in the StudentPopupDetails_EmergencyContactDetails method in IDAttend’s IDWeb application 3.1.052 and earlier allows extraction of sensitive student data by unauthenticated attackers.

How urgent is CVE-2023-27377?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-27376 HIGH 7.5 UPGRADE Missing authentication in the StudentPopupDetails_StudentDetails method in IDAttend’s IDWeb application
CVE-2023-27375 HIGH 7.5 UPGRADE Missing authentication in the StudentPopupDetails_ContactDetails method in IDAttend’s IDWeb application
CVE-2023-27262 CRITICAL 9.8 UPGRADE Unauthenticated SQL injection in the GetAssignmentsDue method in IDAttend’s IDWeb application 3.1.052 a
CVE-2023-27261 MEDIUM 5.3 UPGRADE Missing authentication in the DeleteAssignments method in IDAttend’s IDWeb application 3.1.052 and ear
CVE-2023-27260 CRITICAL 9.8 UPGRADE Unauthenticated SQL injection in the GetAssignmentsDue method in IDAttend’s IDWeb application 3.1.052 a

References

← Back to latest CVEs