CVE-2026-1154: A flaw has been found in SourceCodester E-Learning System 1.0

Routine

MEDIUM 4.3DOWNGRADE

CVE-2026-1154 is a medium-severity flaw (CVSS 4.3) affecting e-learning system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in SourceCodester E-Learning System 1.0. This impacts an unknown function of the file /admin/modules/lesson/index.php of the component Lesson Module Handler. Executing a manipulation of the argument Title/Description can lead to basic cross site scripting. The attack can be executed remotely. The exploit has been published and may be used.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-74, CWE-80
Published	2026-01-19
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: janobe

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

Am I affected?

Timeline

2026-01-19 13:16 UTCPublished CVE record published
2026-06-17 10:15 UTCUpdated Record last modified

janobe e-learning system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy e-learning-system || rpm -q e-learning-system || e-learning-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison e-learning-system sudo apt install e-learning-system=<VERSION_BEFORE_1.0> sudo apt-mark hold e-learning-system

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

dnf --showduplicates list e-learning-system sudo dnf downgrade e-learning-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add e-learning-system

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-2026-1154?

e-learning system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-1154 being exploited?

CVE-2026-1154 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-2026-1154 affect?

CVE-2026-1154 affects e-learning system. Severity is medium (CVSS 4.3). A flaw has been found in SourceCodester E-Learning System 1.0. This impacts an unknown function of the file /admin/modules/lesson/index.php of the component Lesson Module Handler. Executing a manipulation of the argument Title/Description c

How urgent is CVE-2026-1154?

Priority 29/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-1590 MEDIUM 4.7 DOWNGRADE A vulnerability was found in SourceCodester E-Learning System 1.0
CVE-2025-1589 MEDIUM 4.3 DOWNGRADE A vulnerability was found in SourceCodester E-Learning System 1.0 and classified as problematic

References

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