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NVD / CVE Program· CNA mitre

CVE-2020-25768: Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation.

MediumCVSS 5.3 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.81% (FIRST EPSS); higher than 57.6% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: contao/contao (Packagist) 4.4.52, 4.10.1, 4.9.6; contao/core-bundle (Packagist) 4.4.52, 4.10.1, 4.9.6.

Low priority for now. Upgrade to contao/contao (Packagist) 4.4.52, 4.10.1, 4.9.6; contao/core-bundle (Packagist) 4.4.52, 4.10.1, 4.9.6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

Published
Oct 7, 2020
Updated
Jun 16, 2026
EPSS
0.8% · 57th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
contaocontao

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • contao contao4.0 and later · before 4.4.52
  • contao contao4.9.0 and later · before 4.9.6
  • contao contao4.10.0 and later · before 4.10.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistcontao/contaofrom 4.0.0 · before 4.4.524.4.52
Packagistcontao/contaofrom 4.10.0 · before 4.10.14.10.1
Packagistcontao/contaofrom 4.5.0 · before 4.9.64.9.6
Packagistcontao/core-bundlefrom 4.0.0 · before 4.4.524.4.52
Packagistcontao/core-bundlefrom 4.10.0 · before 4.10.14.10.1
Packagistcontao/core-bundlefrom 4.5.0 · before 4.9.64.9.6

Same product

contao: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-26265Contao Managed Edition v1.5.0 was discovered to contain a remote command execution (RCE) vulnerability via the component php_cli parameter.
    48Plan
  • CVE-2019-11512Contao 4.x allows SQL Injection.
    39Monitor
  • CVE-2026-107845Contao: Cross-site scripting in the comments bundle
    37Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2012-4383Jan 29, 2020 · contao prior to 2.11.4 has a sql injection vulnerability
    35Monitor
  • ← EarlierCVE-2018-10125Mar 16, 2020 · Contao before 4.5.7 has XSS in the system log.
    24Monitor
  • Later →CVE-2021-35210Jun 23, 2021 · Contao 4.5.x through 4.9.x before 4.9.16, and 4.10.x through 4.11.x before 4.11.5, allows XSS.
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Packagist:contao/contao4.10.1Package registry (OSV)
Packagist:contao/contao4.4.52Package registry (OSV)
Packagist:contao/contao4.9.6Package registry (OSV)
Packagist:contao/core-bundle4.10.1Package registry (OSV)
Packagist:contao/core-bundle4.4.52Package registry (OSV)
Packagist:contao/core-bundle4.9.6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records