CVE-2021-44664: An Authenticated Remote Code Exection (RCE) vulnerability exists in Xerte through 3.9 in website_code/php/impo

Q: How do I fix CVE-2021-44664?

xerte: upgrade to newer than 3.9. Exact commands for each OS are on this page.

Q: Is CVE-2021-44664 being exploited?

CVE-2021-44664 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-2021-44664 affect?

CVE-2021-44664 affects xerte. Severity is high (CVSS 8.8). An Authenticated Remote Code Exection (RCE) vulnerability exists in Xerte through 3.9 in website_code/php/import/fileupload.php by uploading a maliciously crafted PHP file though the project interface disguised as a language file to bypasse

Q: How urgent is CVE-2021-44664?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

This week

HIGH 8.8UPGRADE

CVE-2021-44664 is a high-severity flaw (CVSS 8.8) affecting xerte. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Authenticated Remote Code Exection (RCE) vulnerability exists in Xerte through 3.9 in website_code/php/import/fileupload.php by uploading a maliciously crafted PHP file though the project interface disguised as a language file to bypasses the upload filters. Attackers can manipulate the files destination by abusing path traversal in the 'mediapath' variable.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	12.8% (top 4%)
CISA exploited list	No
Weakness	CWE-22, CWE-434
Published	2022-02-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xerte

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

Am I affected?

Timeline

2022-02-24 21:15 UTCPublished CVE record published
2026-06-17 04:12 UTCUpdated Record last modified

xerte xerte UPGRADE

Affected: <= 3.9

Fixed in: newer than 3.9

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.9 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xerte

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Xerte 3.9 - Remote Code Execution (RCE) (Authenticated)

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-2021-44664?

xerte: upgrade to newer than 3.9. Exact commands for each OS are on this page.

Is CVE-2021-44664 being exploited?

CVE-2021-44664 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-2021-44664 affect?

CVE-2021-44664 affects xerte. Severity is high (CVSS 8.8). An Authenticated Remote Code Exection (RCE) vulnerability exists in Xerte through 3.9 in website_code/php/import/fileupload.php by uploading a maliciously crafted PHP file though the project interface disguised as a language file to bypasse

How urgent is CVE-2021-44664?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2021-44665 MEDIUM 6.5 UPGRADE A Directory Traversal vulnerability exists in the Xerte Project Xerte through 3.10.3 when downloading a projec

References

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