CVE-2020-13877: SQL Injection issues in various ASPX pages of ResourceXpress Meeting Monitor 4.9 could lead to remote code exe

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-13877 is a critical-severity flaw (CVSS 9.8) affecting meeting monitor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection issues in various ASPX pages of ResourceXpress Meeting Monitor 4.9 could lead to remote code execution and information disclosure.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-89
Published	2020-11-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: resourcexpress

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

Am I affected?

Timeline

2020-11-12 21:15 UTCPublished CVE record published
2026-06-17 02:53 UTCUpdated Record last modified

resourcexpress meeting monitor DOWNGRADE

Affected: 4.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.9

1. Check installed version

apt-cache policy meeting-monitor || rpm -q meeting-monitor || meeting-monitor --version

2. No fixed release: DOWNGRADE to a release before 4.9 (Debian / Ubuntu)

apt-cache madison meeting-monitor sudo apt install meeting-monitor=<VERSION_BEFORE_4.9> sudo apt-mark hold meeting-monitor

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

dnf --showduplicates list meeting-monitor sudo dnf downgrade meeting-monitor-<VERSION_BEFORE_4.9> sudo dnf versionlock add meeting-monitor

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-2020-13877?

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

Is CVE-2020-13877 being exploited?

CVE-2020-13877 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-2020-13877 affect?

CVE-2020-13877 affects meeting monitor. Severity is critical (CVSS 9.8). SQL Injection issues in various ASPX pages of ResourceXpress Meeting Monitor 4.9 could lead to remote code execution and information disclosure.

How urgent is CVE-2020-13877?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

References

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