CVE-2023-48841: Appointment Scheduler 3.0 is vulnerable to CSV Injection via a Language > Labels > Export action.

This month

HIGH 8.8DOWNGRADE

CVE-2023-48841 is a high-severity flaw (CVSS 8.8) affecting appointment scheduler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Appointment Scheduler 3.0 is vulnerable to CSV Injection via a Language > Labels > Export action.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-74
Published	2023-12-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: phpjabbers

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

Am I affected?

Timeline

2023-12-07 07:15 UTCPublished CVE record published
2026-06-17 06:35 UTCUpdated Record last modified

phpjabbers appointment scheduler DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy appointment-scheduler || rpm -q appointment-scheduler || appointment-scheduler --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison appointment-scheduler sudo apt install appointment-scheduler=<VERSION_BEFORE_3.0> sudo apt-mark hold appointment-scheduler

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

dnf --showduplicates list appointment-scheduler sudo dnf downgrade appointment-scheduler-<VERSION_BEFORE_3.0> sudo dnf versionlock add appointment-scheduler

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-2023-48841?

appointment scheduler: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-48841 being exploited?

CVE-2023-48841 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-2023-48841 affect?

CVE-2023-48841 affects appointment scheduler. Severity is high (CVSS 8.8). Appointment Scheduler 3.0 is vulnerable to CSV Injection via a Language > Labels > Export action.

How urgent is CVE-2023-48841?

Priority 53/100. High severity; Public exploit reference

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CVE-2023-48839 MEDIUM 5.4 DOWNGRADE Appointment Scheduler 3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) issues via the name, plu
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CVE-2023-36127 HIGH 7.5 DOWNGRADE User enumeration is found in in PHPJabbers Appointment Scheduler 3.0
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References

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