How severe is CVE-2013-6808?

CVE-2013-6808 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-6808 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6808?

CVE-2013-6808 primarily affects Zend Zendto. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6808?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-6808 published?

CVE-2013-6808 was published on 2013-12-28 and last updated on 2026-06-17.

CVE-2013-6808

CVE-2013-6808 is a medium-severity vulnerability in Zend Zendto with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zend Zendto
Published: 2013-12-28
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in lib/NSSDropoff.php in ZendTo before 4.11-13 allows remote attackers to inject arbitrary web script or HTML via a modified emailAddr field to pickup.php.

Frequently asked questions

What is CVE-2013-6808?: Cross-site scripting (XSS) vulnerability in lib/NSSDropoff.php in ZendTo before 4.11-13 allows remote attackers to inject arbitrary web script or HTML via a modified emailAddr field to pickup.php.
How severe is CVE-2013-6808?: CVE-2013-6808 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2013-6808 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6808?: CVE-2013-6808 primarily affects Zend Zendto. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6808?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-6808 published?: CVE-2013-6808 was published on 2013-12-28 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:a:zend:zendto:*:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.00:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.01:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.02:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.03-3:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.05-2:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.06-2:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.07-1:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.08-4:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.09-1:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.10-4:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.10-5:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-1:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-2:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-3:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-4:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-5:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-7:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-8:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-9:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-10:*:*:*:*:*:*:*
cpe:2.3:a:zend:zendto:4.11-11:*:*:*:*:*:*:*

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CVE-2021-27888 — Medium (CVSS 6.1): ZendTo before 6.06-4 Beta allows XSS during the display of a drop-off in which a filename has unexpected characters.
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