CVE-2023-49339: Ellucian Banner 9.17 allows Insecure Direct Object Reference (IDOR) via a modified bannerId to the /StudentSel

Q: How do I fix CVE-2023-49339?

banner: upgrade to newer than 9.17. Exact commands for each OS are on this page.

Q: Is CVE-2023-49339 being exploited?

CVE-2023-49339 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-2023-49339 affect?

CVE-2023-49339 affects banner. Severity is medium (CVSS 6.5). Ellucian Banner 9.17 allows Insecure Direct Object Reference (IDOR) via a modified bannerId to the /StudentSelfService/ssb/studentCard/retrieveData endpoint.

Q: How urgent is CVE-2023-49339?

Priority 40/100. Public exploit reference

This month

MEDIUM 6.5UPGRADE

CVE-2023-49339 is a medium-severity flaw (CVSS 6.5) affecting banner. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ellucian Banner 9.17 allows Insecure Direct Object Reference (IDOR) via a modified bannerId to the /StudentSelfService/ssb/studentCard/retrieveData endpoint.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-639
Published	2024-02-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ellucian

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

Am I affected?

Timeline

2024-02-13 01:15 UTCPublished CVE record published
2026-06-17 06:35 UTCUpdated Record last modified

ellucian banner UPGRADE

Affected: <= 9.17

Fixed in: newer than 9.17

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 9.17 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade banner

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-2023-49339?

banner: upgrade to newer than 9.17. Exact commands for each OS are on this page.

Is CVE-2023-49339 being exploited?

CVE-2023-49339 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-2023-49339 affect?

CVE-2023-49339 affects banner. Severity is medium (CVSS 6.5). Ellucian Banner 9.17 allows Insecure Direct Object Reference (IDOR) via a modified bannerId to the /StudentSelfService/ssb/studentCard/retrieveData endpoint.

How urgent is CVE-2023-49339?

Priority 40/100. Public exploit reference

References

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