CVE-2020-13549: An exploitable local privilege elevation vulnerability exists in the file system permissions of Sytech XL Repo

This month

HIGH 7.8DOWNGRADE

CVE-2020-13549 is a high-severity flaw (CVSS 7.8) affecting xlreporter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An exploitable local privilege elevation vulnerability exists in the file system permissions of Sytech XL Reporter v14.0.1 install directory. Depending on the vector chosen, an attacker can overwrite service executables and execute arbitrary code with privileges of user set to run the service or replace other files within the installation folder, which would allow for local privilege escalation.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-276
Published	2021-02-19
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: sytech

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

Am I affected?

Timeline

2021-02-19 17:15 UTCPublished CVE record published
2026-06-17 02:53 UTCUpdated Record last modified

sytech xlreporter DOWNGRADE

Affected: 14.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 14.0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 14.0.1 (Debian / Ubuntu)

apt-cache madison xlreporter sudo apt install xlreporter=<VERSION_BEFORE_14.0.1> sudo apt-mark hold xlreporter

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

dnf --showduplicates list xlreporter sudo dnf downgrade xlreporter-<VERSION_BEFORE_14.0.1> sudo dnf versionlock add xlreporter

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-2020-13549?

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

Is CVE-2020-13549 being exploited?

CVE-2020-13549 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-2020-13549 affect?

CVE-2020-13549 affects xlreporter. Severity is high (CVSS 7.8). An exploitable local privilege elevation vulnerability exists in the file system permissions of Sytech XL Reporter v14.0.1 install directory. Depending on the vector chosen, an attacker can overwrite service executables and execute arbitrar

How urgent is CVE-2020-13549?

Priority 42/100. High severity; Public exploit reference

References

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