CVE-2021-47751
CVE-2021-47751 is a high-severity vulnerability in Phphtmledit Rich Text Editor with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 5.3
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-2656
- Weakness: CWE-22
- Affected product: Phphtmledit Rich Text Editor
- Published:
- Last modified:
Description
CuteEditor for PHP (now referred to as Rich Text Editor) 6.6 contains a directory traversal vulnerability in the browse template feature that allows attackers to write files to arbitrary web root directories. Attackers can exploit the ServerMapPath() function by renaming uploaded HTML files using directory traversal sequences to write files outside the intended template directory.
Frequently asked questions
- What is CVE-2021-47751?
- CuteEditor for PHP (now referred to as Rich Text Editor) 6.6 contains a directory traversal vulnerability in the browse template feature that allows attackers to write files to arbitrary web root directories. Attackers can exploit the ServerMapPath() function by renaming uploaded HTML files using directory traversal sequences to write files outside the intended template directory.
- How severe is CVE-2021-47751?
- CVE-2021-47751 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2021-47751 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-47751?
- CVE-2021-47751 affects Phphtmledit Rich Text Editor. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-47751?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2021-47751 have an EU (EUVD) identifier?
- Yes. CVE-2021-47751 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2656.
- When was CVE-2021-47751 published?
- CVE-2021-47751 was published on 2026-01-13 and last updated on 2026-06-17.
References
- http://phphtmledit.com/
- https://www.exploit-db.com/exploits/50994
- https://www.vulncheck.com/advisories/cuteeditor-for-php-directory-traversal
Affected products (1)
- cpe:2.3:a:phphtmledit:rich_text_editor:*:*:*:*:*:*:*:*
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