CVE-2020-8091 json
Typo3 Cross-Site Scripting in Flash component (ELTS)
published 6y ago modified 4mo ago also BIT-typo3-2020-8091 , EUVD-2022-5035 , GHSA-qvhv-pwww-53jj
- cvss
- 4.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.2%
- EPSS 5.2% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
Patch / fix
- packagist typo3/cms 6.2.39, 7.2.0
- bitnami typo3 6.2.39, 7.1.0
- typo3 typo3 6.2.39
Is CVE-2020-8091 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
5.21% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- purplemet.com https://www.purplemet.com/blog/typo3-xss-vulnerability referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 4.8 | CVSS:3.0/AC:H/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.0 | 4.8 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| OSV | 3.0 | 4.8 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | typo3/cms | >=7.0.0, <7.2.0 >=6.2.0, <6.2.39 |
7.2.0 6.2.39 |
| bitnami | typo3 | >=6.2.0, <6.2.39 >=7.0.0, <7.1.0 |
6.2.39 7.1.0 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/TYPO3/typo3/commit/482e2e992f80f5e38cb48fcaea40fd9812a5252c
web
-
purplemet.com
/blog/typo3-xss-vulnerability
web, exploit, third-party-advisory
-
typo3.org
/security/advisory/typo3-psa-2019-003/
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2020-8091
advisory
-
github.com
/TYPO3/typo3
package
-
github.com
/TYPO3/typo3/blob/4cb53e828bd5138d180cdf9cac1ccf7fd31086d2/typo3/sysext/core/Documentation/Changelog/7.2/Break
web
-
typo3.org
/security/advisory/typo3-psa-2019-003
web
Sources
- CVE List CVE-2020-8091
- GitHub Advisory GHSA-qvhv-pwww-53jj
- NVD CVE-2020-8091
- OSV BIT-typo3-2020-8091
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.